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
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：
形容词: backless | 动词过去式: backed | 动词过去分词: backed | 动词现在分词: backing | 动词第三人称单数: backs |
详细释义：
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
短语词组：
back and forth
1. 来来回回地
The wind moved the trees gently back and forth.
风吹来, 树来回轻摆。
back away
1. 后退; 退却
He never backed away from difficulties.
他从来没有在困难面前退却过。
back down
1. 放弃; 让步; 打退堂鼓
He backed down after I saw his mistake.
在我拆穿他的大话后, 他让步了。
I see he has backed down from the position he took last week.
我注意到他放弃了上星期的立场。
back out
1. 退出(协议、计划等); 取消
He backed out of the deal when he saw the risks.
当他看到有风险的时候, 立即退出交易。
He has decided to back out of the scheme.
他决定退出这项计划。
back to back
1. 背靠背地
Stand back to back and we'll see which of you is taller.
背靠背站着, 这样我们就能看出你们俩哪一个高了。
back up
1. 支持
He would have lost his position if you hadn't backed him up.
假如你当初没有支持他, 他可能已经失去职位了。
at sb.'s back
1. 作某人后盾
If you make this decision you will certainly have the President at your back.
你如果采取这项决定的话, 一定会得到总统的支持。
behind sb.'s back
1. 背着某人
They sold the house behind their brother's back.
他们背着弟弟把房子卖了。
break one's back
1. 拼命做
I'm not going to break my back working for such low wages.
我才不愿为这么低的工资而拼命做活。
get off sb.'s back
1. 不再打扰某人
Why don't you get off my back and let me do my work!
你就不能别打扰我让我好好地工作!
have one's back to the wall
1. 处于绝境
When we had our backs to the wall during the war, everyone had to fight together.
战争中我们陷入绝境之时, 大家只能合力奋战。
on one's back
1. 卧病在床
He was on his back for 3 weeks.
他有三个星期卧病在床。
put/set sb.'s back up
1. 令某人不快
His rude behavior really puts my back up.
他的粗鲁举动真令我生气。
see the back of sb.
1. 摆脱某人
I should be glad to see the back of him.
我真巴不得他快点走开。
turn one's back on
1. 转过身不理
He's always been kind to me. I can't just turn my back on him now because he's ill and poor.
他一直对我很好, 现在他贫病交加, 我可不能不加理会。