词典释义：
a sudden loud, sharp noise
（突发的）巨响，砰
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the door slammed with a bang .门砰的一声关上了。
a sharp blow causing such a noise
（发出巨响的）猛击；猛撞
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I went to answer a bang on the front door .我去看看谁在猛敲前门。
a sudden painful blow
（重重）一击
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a nasty bang on the head .对头部的猛击。
(
〈主北美〉（前额上整齐的）刘海。[ORIGIN: from a use of the adverb <Italic>bang</Italic> to mean ‘abruptly’.]
〈粗俚〉性交。
‘！’ 【计算机】〈主美〉感叹号“！”
strike or put down (something) forcefully and noisily, typically in anger or in order to attract attention
（尤指因生气或为引起注意）砰地敲，砰地放下
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he began to bang the table with his fist 他开始用拳头捶桌子
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Sarah banged the phone down 萨拉砰地放下电话听筒
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[no obj.]
someone was banging on the door .有人在捶门。
[with obj. and adverbial]cause to come into contact with something suddenly and sharply, typically by accident
（意外）猛撞
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I banged my head on the low beams 我的头撞到了低梁
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[no obj.]
she banged into some shelves in the darkness .黑暗中她撞上了书架。
[no obj.]make a sudden loud noise, typically repeatedly
砰砰作响
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the shutter was banging in the wind .百叶窗在风中乒乓作响。
(with reference to something such as a door)open or close violently and noisily
（门等）砰地打开，砰地关上
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[with obj. and complement]
he banged the kitchen door shut behind him 他砰地关上身后的厨房门
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[no obj., with complement]
the door banged open and a man staggered out .门砰地打开，一个男人摇摇晃晃地走了出来。
[no obj., with adverbial of direction](of a person)move around or do something noisily, especially as an indication of anger or irritation
（尤指生气烦躁时）重手重脚地走动，粗暴摆弄
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she was banging around the kitchen .她在发脾气，把厨房里的东西弄得砰啪作响。
[with obj. and adverbial of direction](of a sports player)hit (a ball or a shot) forcefully and successfully
（运动员）成功猛击（球）
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he banged home four penalties in the opening twenty minutes .开场后２０分钟他就为本队猛进４个点球。
〈粗俚〉（男性）与（女人）性交。
〈主北美〉剪（刘海）。
exactly 〈非正式，主英〉正；恰恰
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the train arrived bang on time .火车正点到达。
completely
完全，彻底
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bring your wardrobe bang up to date .彻底更新你的衣服。
used to express or imitate the sound of a sudden loud noise
砰，轰
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party poppers went bang 派对参加者们拉响炮仗啪啪作响。
used to convey the suddenness of an action or process
砰地一下（表示突然）
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the minute something becomes obsolete, bang, it's gone .那件事一过时，马上就会消失。
variant spelling of
同<Bold>ＢＨＡＮＧ</Bold>.
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bang for one's （或the ）buck informal, chiefly US value for money; performance for cost 〈非正式，主美〉花钱换得价值 -
bang goes — used to express the sudden or complete destruction of a plan or ambition （计划，图谋）突然破灭my first thought when I heard the news was ‘Bang goes my knighthood！ ’ 我听到那个消息第一反应是“我封不了爵（士）了！”bang on Brit． informal exactly right 〈英，非正式〉完全正确；完全符合the programme is bang on about the fashion world ． 那节目完全符合时装界情况 -
bang （或knock ）people's heads together 见ＨＥＡＤ ．get a bang out of informal, chiefly N． Amer ． derive excitement or pleasure from 〈非正式，主北美〉从…中得到刺激或乐趣some people get a bang out of reading that stuff ． 有些人从看那东西中得到乐趣 -
go （off ）with a bang go successfully 进展顺利 -
with a bang １ abruptly 突然地the remark brought me down to earth with a bang ． 那句话突然把我带回了现实 -
２ impressively or spectacularly 令人难忘地，壮观地the day starts with a bang —the steep climb to the mountain top ． 艰难登顶——那一天就这样惊心动魄地开始了
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bang away at informal do something in a persistent or dogged way 〈非正式〉坚持不懈he was banging away at his novel ． 他正为自己的小说不懈努力 -
bang on about informal talk tediously and at length about （something） 〈非正式〉喋喋不休the government banged on about competition, efficiency, and the free market ． 政府喋喋不休大谈竞争、效率和自由市场 -
bang something out informal 〈非正式〉１ play music or a tune noisily, enthusiastically, and unskilfully 响亮而不熟练地奏（乐曲） -
２ produce something hurriedly or in great quantities 大量而匆促生产they weren't banging out ads in my day the way they are now ． 我那个年代他们可没像今天这样拼命做广告 -
bang someone／thing up Brit ．informal imprison someone 〈英，非正式〉 把（某人）关进监狱they've been banged up for something they didn't do ． 他们因莫须有的罪名被关进监狱 -
N． Amer ． informal damage or injure someone or something 〈北美，非正式〉损害；伤害he banged up his knee ． 他弄伤了膝盖
"mid 16th cent.: imitative, perhaps of Scandinavian origin; compare with Old Norse
