- a sudden loud, sharp noise（突发的）巨响, 砰：
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：
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：
a nasty bang on the head.
对头部的猛击。
bangs
chiefly N. Amer. a fringe of hair cut straight across the forehead〈主北美〉（前额上整齐的）刘海。- ORIGIN: from a use of the adverb bang to mean 'abruptly'.
- vulgar slang an act of sexual intercourse〈粗俚〉性交。
- Computing, chiefly US the character '!'【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：
he began to bang the table with his fist
他开始用拳头捶桌子
Sarah banged the phone down
萨拉砰地放下电话听筒
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：
I banged my head on the low beams
我的头撞到了低梁
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：
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：
with obj. and complement he banged the kitchen door shut behind him他砰地关上身后的厨房门
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：
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）：
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。
- vulgar slang (of a man) have sexual intercourse with (a woman)〈粗俚〉（男性）与（女人）性交。
- chiefly N. Amer. cut (hair) in a fringe〈主北美〉剪（刘海）。
- informal, chiefly Brit. exactly〈非正式, 主英〉正; 恰恰：
the train arrived bang on time.
火车正点到达。
- completely完全, 彻底：
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：
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）：
the minute something becomes obsolete, bang, it's gone.
那件事一过时, 马上就会消失。
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
- 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。
- 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。
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
- play music or a tune noisily, enthusiastically, and unskilfully响亮而不熟练地奏（乐曲）。
- 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。