
好词典

源自中古英语botoun,来自古法语boton,原意为"花蕾",后引申为"纽扣",因其形状相似。
❶ 纽扣,衣物上用于固定的小圆形物体,通常由塑料、金属或贝壳制成,通过扣眼固定。
“She sewed a new button onto her coat.”
(她给外套缝上了一颗新纽扣。)
“The shirt has six small buttons down the front.”
(这件衬衫前面有六颗小纽扣。)
❶ 按钮,电子设备上用于操作的小型按压装置,按下后触发特定功能。
“Click the power button to turn on the computer.”
(点击电源按钮打开电脑。)
“The elevator buttons light up when pressed.”
(电梯按钮被按下时会亮起。)
❶ 扣上纽扣,指将衣物上的纽扣穿过扣眼固定好的动作。
“Button your coat before going outside.”
(出门前把外套扣好。)
“She buttoned her blouse carefully.”
(她仔细地扣好衬衫纽扣。)
on the button — 形容时间或数量完全准确,分毫不差,常用于口语表达精确性。
“Your guess was right on the button!”
(你猜得完全正确!)
button up — 扣好所有纽扣,也引申为完成某件事或保持沉默。
“Button up your coat, it's freezing outside.”
(把外套扣好,外面冷极了。)