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a small round piece of metal, plastic, etc. that is sewn onto a piece of clothing and used for fastening two parts together 紐扣；扣子 
- (British English)
to do up/undo your buttons 系上／解開扣子 - (North American English)
to button/unbutton your buttons 系上／解開扣子 to sew on a button 縫上扣子 shirt buttons 襯衫的紐扣 a row of gilt buttons 一排鍍金紐扣 One of the buttons on his jacket was missing. 他夾克上的一顆紐扣不見了。
Extra ExamplesTopics Clothes and Fashiona2My coat has lost a button. 我的外套掉了一顆扣子。 The top button of his shirt was undone. 他襯衫最上面的紐扣開了。 There was a button missing from his shirt. 他襯衣上有一枚鈕扣不見了。 His fingers fumbled to do up/button the small buttons on his shirt. 他的手指笨拙地扣上襯衫上的小紐扣。 I need to sew this button back on. 我得把這顆扣子再縫上去。
Oxford Collocations Dictionaryadjective- bottom
- top
- coat
- …
- button
- do up
- fasten
- …
- be missing
- come off
- (British English)
-
a small part of a machine that you press to make it work （機器的）按鈕 the start/stop/pause button 開始/停止/暫停按鈕 Adam pressed a button and waited for the lift. 亞當按了一個按鈕，然後等着乘坐電梯。 Choose ‘printer’ from the menu and click with the right mouse button. 從菜單上選取 “打印機”，然後點擊鼠標右鍵。 She pushed a button on the control panel. 她按下了控制面板上的一個按鈕。 I hit the play button on the remote. 我按了遙控器上的播放鍵。 The windows slide down at the touch of a button. 按一下開關，窗玻璃便降下來。 With a push of a button, I can print out everything I need. 只要按一下按鈕，我就能打印出我需要的一切。
Extra ExamplesTopics Engineeringa2She hit the alarm button as fast as she could. 她以最快的速度按了警報器。 The remote control allows you to change channel at the touch of a button. 遙控器讓你一按鍵即可變換頻道。
Oxford Collocations Dictionaryadjective- on
- start
- off
- …
- click
- depress
- hit
- …
- at the touch of a button
- have your finger on
- keep your finger on
- …
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a small area on a computer screen that you click on to make it do something （電腦屏幕上的）按鍵 Click on the back button to go back to the previous screen. 點擊返回鍵，回到上一頁。 Click the ‘Finish’ button in the top right-hand corner of the screen. 單擊屏幕右上角的“完成”按鈕。 I hit the ‘Reply’ button in the mail toolbar. 我點擊了郵件工具欄上的“回複”按鈕。
Oxford Collocations Dictionaryadjective- on
- start
- off
- …
- click
- depress
- hit
- …
- at the touch of a button
- have your finger on
- keep your finger on
- …
- (especially North American English)
a badge, especially one with a message printed on it （尤指印有信息的）徽章 
He wore a button saying ‘Life begins at 40!’ 他戴着一顆紐扣，上面寫着“生命從40歲開始！
Extra ExamplesShe wore a ‘Vote Yes’ lapel button. 她在翻領上别了一枚“投贊成票”的徽章。 The candidates all distributed campaign buttons and bumper stickers. 所有的候選人都在分發競選徽章和保險杠貼紙。 They all wore buttons saying ‘Stop the war’. 他們全都戴着寫有“停止戰爭”字樣的徽章。 He carries around an old backpack with peace buttons on it. 他走到哪裏都背着那個别着和平徽章的舊背包。
Oxford Collocations Dictionaryadjective- lapel
- campaign
- peace
- …
- wear
Word OriginMiddle English: from Old French bouton, of Germanic origin and related to the verb butt.
Idioms
(as) bright as a button
- (British English, informal)
intelligent and quick to understand 機靈的；聰穎的 More Like This Similes in idiomsSimiles in idioms- (as) bald as a coot
- (as) blind as a bat
- (as) bright as a button
- (as) bold as brass
- as busy as a bee
- as clean as a whistle
- (as) dead as a/the dodo
- (as) deaf as a post
- (as) dull as ditchwater
- (as) fit as a fiddle
- as flat as a pancake
- (as) good as gold
- (as) mad as a hatter/a March hare
- (as) miserable/ugly as sin
- as old as the hills
- (as) pleased/proud as Punch
- as pretty as a picture
- (as) regular as clockwork
- (as) quick as a flash
- (as) safe as houses
- (as) sound as a bell
- (as) steady as a rock
- (as) thick as two short planks
- (as) tough as old boots
on the button (informal, especially North American English)
push all the (right) buttons
(also press all the (right) buttons especially in British English)
- (informal)
to do exactly the right things to please somebody 做得面面俱到以討好人 a new satirical comedy show that pushes all the right buttons 一出新的極盡搞笑之能事的諷刺喜劇
push somebody’s buttons
(also press somebody’s buttons especially in British English)