它是用风纪扣扣上的。

It fastens with a hook and eye.

《牛津词典》

大多上衣、夹克、罩衫都在前面扣扣。

Most coats, jackets or blouses button at the front.

youdao

他会玩弄他外衣上的纽扣，将其扣扣开开。

He'll play with the buttons on his jacket, buttoning and unbuttoning it.

youdao

A kind of a pin used to hold your cloak together, called a fibula, unknown in the previous period.

一种别住披风的别针,称之为扣针,这在之前的时期从未出现过

耶鲁公开课 - 古希腊历史简介课程节选

He wore an old double-breasted suit, frayed gray shirt, wide tie, no hat "I left her so long ago I don't remember.

他穿着一件双排扣的旧大衣，一件散口的灰衬衫，和一条宽领带，没有戴帽子，“我很早以前就离开了她。

耶鲁公开课 - 1945年后的美国小说课程节选

If you squeeze the trigger of a gun really hard and really fast, it doesn't fire any faster or harder than if you just squeezed it gently.

快速有力地扣动扳机,并不比你轻扣扳机,射出的更加快速或更加有力

耶鲁公开课 - 心理学导论课程节选