He snapped the cap on his ballpoint.

他吧嗒一声扣上圆珠笔的笔帽。

《柯林斯英汉双解大词典》

Anna put the new cap on her head.

安娜在她头上带上新的帽子。

youdao

I wrote it on the starter cap.

我把它写在启动器盖上了。

youdao

On his head he wore an orange cap, covered with little silver bells.

VOA: special.2009.02.07

And here in the middle of the page a little ways down: My love's striped black-and-white cotton frock, jaunty blue cap, white socks and brown moccasins were not quite in keeping with the large, beautifully cut aquamarine on a silver chainlet which gemmed her throat, a spring rain gift from me.

在这一页中间偏下的地方：,我的小情人穿着黑白条子的棉布裙，带着鲜艳的蓝色帽子，白袜子和亮皮鞋与她脖子上那条优美的,蓝宝石项链有些不协调,这是由于那场春雨我送给她的礼物。

耶鲁公开课 - 1945年后的美国小说课程节选

He began to cough. The silver bells on his cap jingled.

VOA: special.2009.02.07

President Obama has supported carbon controls, backing a 2009 House bill that relied on cap-and-trade.

FORBES: California's Carbon Caps are Contentious but Coming

And did they say, all right, we're going to come to the table on cap and trade, for instance?

WHITEHOUSE: Press Briefing

For the most part, they play supporting roles, such as with due diligence, research, working on cap tables and scouting for deal flow.

FORBES: Why Doesn't a VC Say 'Yes' or 'No'?