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单词解释	百度谷歌图片维基百科智典

back[bæk]

There was a giggle from the back of the class.从教室后面传来咯咯的笑声.
They went out to the back courtyard for a quiet chat.走至后院说体己话.
His handkerchief is poking out of his back pocket.他的手帕从裤子后面的口袋露出来。
He backs against the piano and bows brusquely.他退到钢琴那里冷淡地点点头。
Try to discourage him from driving back to London tonight.尽力劝他今晚不要驾车回伦敦。
I'll get someone who speaks English to call you back later.我等会找一位能说英语的人回电给你。
The policeman waved the people back.警察挥手示意人们后退。
A snail shrinks back at a touch.蜗牛一碰就缩回去了。

in or to or toward a former location
[例]
- she went back to her parents' house
at or to or toward the back or rear
[同] back , backward , backwards , rearward , rearwards
[反] forrad , forrard , forward , forwards , frontward , frontwards
[例]
- he moved back
- tripped when he stepped backward
- she looked rearward out the window of the car
in or to or toward an original condition
[例]
- he went back to sleep
in or to or toward a past time
[同] back , backward
[反] forward , ahead
[例]
- set the clocks back an hour
- never look back
- lovers of the past looking fondly backward
in answer
[同] in reply , back
[例]
- he wrote back three days later
- had little to say in reply to the questions
in repayment or retaliation
[例]
- we paid back everything we had borrowed
- he hit me and I hit him back
- I was kept in after school for talking back to the teacher

the posterior part of a human (or animal) body from the neck to the end of the spine
[同] dorsum , back
[例]
- his back was nicely tanned
the side that goes last or is not normally seen
[同] back , rear
[反] front
[例]
- he wrote the date on the back of the photograph
the part of something that is furthest from the normal viewer
[同] back , rear
[反] front
[例]
- he stood at the back of the stage
- it was hidden in the rear of the store
(football) a person who plays in the backfield
the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
[同] back , backbone , rachis , spinal column , spine , vertebral column
[例]
- the fall broke his back
the protective covering on the front, back, and spine of a book
[同] cover , back , binding , book binding
[例]
- the book had a leather binding
the part of a garment that covers the back of your body
[例]
- they pinned a kick me' sign on his back
a support that you can lean against while sitting
[同] back , backrest
[例]
- the back of the dental chair was adjustable
the position of a player on a football team who is stationed behind the line of scrimmage

related to or located at the back
[反] front
[例]
- the back yard
- the back entrance
located at or near the back of an animal
[同] hind , hinder , back
[例]
- back (or hind) legs
- the hinder part of a carcass
of an earlier date
[例]
- back issues of the magazine

travel backward
[例]
- back into the driveway
- The car backed up and hit the tree
be behind; approve of
[同] endorse , indorse , back , plump for , plunk for , support
[例]
- He plumped for the Labor Party
- I backed Kennedy in 1960
give support or one's approval to
[同] endorse , indorse , back , second
[例]
- I'll second that motion
- I can't back this plan
- endorse a new project
cause to travel backward
[反] advance , bring forward
[例]
- back the car into the parking spot
support financial backing for
[例]
- back this enterprise
be in back of
[反] face , front , look
[例]
- My garage backs their yard
place a bet on
[同] gage , game , back , bet on , punt , stake
[例]
- Which horse are you backing?
- I'm betting on the new horse
shift to a counterclockwise direction
[反] veer
[例]
- the wind backed
establish as valid or genuine
[同] back , back up
[例]
- Can you back up your claims?
strengthen by providing with a back or backing