back 英[bæk] 美[bæk] 名词 n.1.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。2.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。3.背面, 反面 On the back of the letter was a diagram.信的背面是张图表。4.脊柱；脊梁骨5.（文件等的）背面6.书等的）最后几页，末尾7.（椅子等的）靠背8.（家具）…靠背的 9.（足球、曲棍球等）后卫10.(染色、酿造、蒸馏等用的)(大)桶，(大)盆；缸；槽11.(用绳索等牵拉的)宽体渡船及物动词 vt. & 不及物动词 vi.1.(使)后退, (使)倒退 The horse backed suddenly.马突然向后倒退。及物动词慧拿 vt.1.作…的衬里 You could back the dress with silk.你可以给这件衣服加丝绸衬里。2.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?3.(用证据或理论来)证实(一种理论或主张)4.下赌注于；打赌5.位于…后面；作(或构成)…的背景6.为(歌手)(提供)伴奏(常与up连用)形容词 adj.1.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。2.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。3.到期未付的；拖欠的4.旧的，过期的，过时的；亏袜5.向后(动)的，反向的，倒退的，逆的；回程的副词 adv.1.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。2.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。3.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。4.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！5.与（某物）有距离6.控制住；忍住7.在曾去过（或提到过）的地方；在前空搭前面 8.回报；回答不及物动词 vi.1.伴奏；伴唱2.（用某物）在…背后加固3.位于（某物）的后面4.（使）后退，倒退5.下赌注于（赛马、参赛队伍等）
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