英语: “back” 
back
[bæk]
n.后面, 背脊, 靠背,后背, 后卫
vt.支持, 后退
adv.向后地
adj.向后的,后面的, 偏远的,过时的, 积欠的
vt.支持, 后退
adv.向后地
adj.向后的,后面的, 偏远的,过时的, 积欠的
例句与用法：
He proved that he was right and his critics had to back down.
他证明了他是正确的，而那些非难他的人不得不收起他们那一套。
Please back the check.
请在这张支票背后签名。
The organization is backed by the UN.
这机构得到联合国的资助。
You'll make your back ache if you carry those heavy buckets.
如果你背那些沉重的桶，你的背会痛的。
Stand back! You're stepping on my toes.
向后站！你踩在我的脚趾头上了。
Put the book back on the shelf when you've finished it.
书读完后，要放回原处。
Three people can sit in the back of this car.
这车的后座可坐3个人。
John plays back in the team.
约翰在这个队打后卫。
词形变化：
英英解释:
名词 back:
the posterior part of a human (or animal) body from the neck to the end of the spine
同义词：dorsum
the side that goes last or is not normally seen
同义词：rear
the part of something that is furthest from the normal viewer
同义词：rear
(football) a person who plays in the backfield
the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
the protective covering on the front, back, and spine of a book
the part of a garment that covers the back of your body
a support that you can lean against while sitting
同义词：backrest
the position of a player on a football team who is stationed behind the line of scrimmage
动词 back:
travel backward
cause to travel backward
support financial backing for
be in back of
shift to a counterclockwise direction
establish as valid or genuine
同义词：back up
strengthen by providing with a back or backing
形容词 back:
related to or located at the back
of an earlier date
副词 back:
in or to or toward a former location
in or to or toward an original condition
in or to or toward a past time
同义词：backward
in answer
同义词：in reply
in repayment or retaliation
同义词
rear | behind | hind | backwards | backbone | spine | vertebrae | support | recede | reverse | backward | vertebral column | spinal column | back up | spinal | encourage | sponsor | succour | help | sustain | second | patronize | boost | favour | aid | assist | abet | uphold | subsidize | promote | countenance | maintain | bolster | certify | validate | corroborate | attest | go | end | buttocks | stern | substantiate | heel | rump | confirm | to | backside | breech | hind-quarters | fundament | posterior | return | rebound | tail end | ebb | retrogress | recoil | backtrack | retrocede | retreat | revert | tail | regress | bat | go to bat for | for | stand | stand behind | hinder | back down | endorse | down | indorse | go backwards | turn tail | prior | ago | backrest | since | rachis | binding | punt | heretofore | stake | back | turn | rearward | plump for | removed | bygone | dorsum | gage | distant | remote | former | past | obsolete | plunk for | earlier | faraway | the | cover | dated | secluded | elapsed | out-of-the-way | late | outermost | hindmost | last | bet on | game | previous | rural | rearwards | advocate | side | guarantee | finance | ridge | befriend | favor | insure | early | or | forward | ward | forwards |
反义词
back
n.
1. 背脊, 背部[C]
Someone patted me on the back.
有人在我背上轻轻地拍了一下。
2. 后部[the S][(+of)]
Grandpa and grandma sat in the back of the car.
爷爷和奶奶坐在汽车后排的座位上。
3. 后面, 背面[the S][(+of)]
4. 椅背[the S] [(+of)]
5. (书报等的)末尾[the S][(+of)]
There is an appendix at the back of the book.
该书末尾处有一附录。
6. (足球等的)后卫; 后卫球员[C][U]
ad.
1. 在原处; 回原处
Joan and I walked back to the college.
我和琼步行回到学校。
2. 向后; 后退地
Please go back three steps.
请退后三步。
3. 以前; 追溯
A few years back you could see nothing but barren land there.
数年前人们在那儿所能看到的只是荒野。
4. 回复; 还; 往回
5. 止住; 延缓
a.[Z]
1. 后面的, 后部的
He sat in the back seat of the car.
他坐在车子后面的座位上。
2. 拖欠的, 到期未付的
3. 过去的; 过期的
I bought some back issues of science magazines yesterday.
昨天我买了几本过期的科学杂志。
4. 【语】舌根音的
5. 偏僻的
6. 向后的
vt.
1. 使倒退; 使后退
She backed her car out of the garage.
她从车库倒车出来。
2. 支持; 援助; 赞助
A lot of my friends backed my plan.
许多朋友支持我的计划。
3. (赛马等)下赌注于; 打赌
4. 裱褙; 给……加衬里[(+with)]
5. 背书(支票等)
John backed the check immediately.
约翰立即背书这张支票。
vi.
1. 倒退; 后退
On seeing the dog, she backed away.
一见到狗, 她便向后退去。
2. 【海】(风)逆时针转向
词形变化：
名词复数：backs
过去式：backed
过去分词：backed
现在进行时：backing
短语词组：
同义:
n.后部, 船尾, 臀部
rear
end
tail end
heel
stern
posterior
breech
buttocks
rump
fundament
hind-quarters
backside
hind
n.脊柱, 椎骨
backbone
spine
vertebrae
v.支持; 鼓励; 赞助
support
help
aid
assist
succour
encourage
patronize
subsidize
sponsor
favour
countenance
maintain
promote
go to bat for
abet
boost
stand behind
v.支撑, 支持, 证实
sustain
uphold
bolster
corroborate
attest
validate
certify
substantiate
second
confirm
v.返回, 翻转, 倒退
return
reverse
backtrack
back down
rebound
revert
retrogress
retreat
ebb
recede
retrocede
go backwards
turn tail
regress
recoil
a.后面的, 后部的, 尾部的
hind
posterior
rear
hinder
hindmost
last
a.偏远的, 偏僻的
removed
remote
out-of-the-way
secluded
distant
faraway
outermost
rural
a.从前的, 逝去的, 过时的
past
former
bygone
elapsed
obsolete
late
previous
dated
earlier
ad.向尾部, 在后面
backwards
to the rear
behind
ad.早期, 自从, ……之前
prior
since
ago
heretofore
同义参见:
forward or forwards
side
finance
second1
favor
ridge
rear1
early
befriend
guarantee
insure
ward
tail1
反义:
ad.向后; 后退地
front
forth
fore
反义参见:
face
词义辨析：
同义:
n.后部, 船尾, 臀部
rear
end
tail end
heel
stern
posterior
breech
buttocks
rump
fundament
hind-quarters
backside
hind
n.脊柱, 椎骨
backbone
spine
vertebrae
v.支持; 鼓励; 赞助
support
help
aid
assist
succour
encourage
patronize
subsidize
sponsor
favour
countenance
maintain
promote
go to bat for
abet
boost
stand behind
v.支撑, 支持, 证实
sustain
uphold
bolster
corroborate
attest
validate
certify
substantiate
second
confirm
v.返回, 翻转, 倒退
return
reverse
backtrack
back down
rebound
revert
retrogress
retreat
ebb
recede
retrocede
go backwards
turn tail
regress
recoil
a.后面的, 后部的, 尾部的
hind
posterior
rear
hinder
hindmost
last
a.偏远的, 偏僻的
removed
remote
out-of-the-way
secluded
distant
faraway
outermost
rural
a.从前的, 逝去的, 过时的
past
former
bygone
elapsed
obsolete
late
previous
dated
earlier
ad.向尾部, 在后面
backwards
to the rear
behind
ad.早期, 自从, ……之前
prior
since
ago
heretofore
同义参见:
forward or forwards
side
finance
second1
favor
ridge
rear1
early
befriend
guarantee
insure
ward
tail1
反义:
ad.向后; 后退地
front
forth
fore
反义参见:
face
back
n.
背, 背部
The back is shaped to the load.
背脊生来就是负重的。
I've got a sore place in my back.
我背上有个地方痛。
后部, 后面
He likes sitting in the back of the class.
他一直喜欢坐在教室的后排。
背面, 反面
On the back of the letter was a diagram.
信的背面是张图表。
vt. & vi.
(使)后退, (使)倒退
The horse backed suddenly.
马突然向后倒退。
vt.
作…的衬里
You could back the dress with silk.
你可以给这件衣服加丝绸衬里。
支持
Many of his friends backed his plan.
他的很多朋友支持他的计划。
Can you back your story with facts?
你能举出事实来证明你的话吗?
adj.
后边的, 背后的
On the back wall there is a map of the world.
后墙上有一幅世界地图。
以前的, 过去的
The war is all back history now, and our two countries are good friends.
这场战争已成为过去的历史, 我们两国现在是友邦了。
He owed three months' back rent.
他欠了三个月的租金。
adv.
还, 回, 往后退
Stand back! This dog bites.
往后站!这狗会咬人。
I've brought a lot of books back with me.
我带回了很多书。
向后面, 后仰着
I bent back too far and hurt my neck.
我向后仰得过度了, 扭伤了脖子。
Don't bend the book back, and you'll damage it.
别向后卷书, 会弄坏的。
回原处, 恢复原状
I am not ready to go back to work yet.
我还不准备回去工作。
After a year in the hospital, he's back in circulation.
住了一年医院之后, 他又活跃起来了。
从前, 回到(从前)
You only need to cast back a little and you'll remember the event.
你只要稍微回想一下, 就可以记起那件事。
That smell of freshly baked bread carries me back!
新烤面包的气味使我回忆起往事！
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