High-value vocabulary
该词属于 Oxford 核心词汇，值得优先掌握常见搭配和句型。
纽扣；扣子
先理解核心含义，再看它在真实句子里的用法。
纽扣；扣子
a small round fastener sewn onto clothing that is pushed through a buttonhole
Press the red button to start the machine.
按红色按钮启动机器。
通过环或扣眼穿过的旋钮或圆盘,用作扣件
A knob or disc that is passed through a loop or (buttonhole), serving as a fastener.
纽扣；缝在衬衫、外套等衣物上以穿过扣眼的圆形紧固件
a round fastener sewn to shirts and coats etc to fit through buttonholes
设计为用手指按压以打开或关闭电路或激活机制的机械装置
A mechanical device designed to be pressed with a finger in order to open or close an electric circuit or to activate a mechanism.
按钮；通过按压操作的电气开关
an electrical switch operated by pressing
She clicked the button on the screen to save her work.
她点击屏幕上的按钮以保存她的工作。
AI contextual example
The elevator button was broken, so we took the stairs.
电梯按钮坏了，所以我们走了楼梯。
AI contextual example
the elevator was operated by push buttons
电梯由按钮操作。
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该词属于 Oxford 核心词汇，值得优先掌握常见搭配和句型。
Collins 词频等级为 3，建议结合例句记忆，而不是只背中文释义。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.