Tappet
n. 梃杆, 凸轮从动件\\n[机] 挺杆
📖 牛津释义
tappet
n
projection in a piece of machinery that causes a certain movement by tapping against sth, used eg to open and close a valve 挺杆.
🗣️ 情景例句
It's a book of pictures.
这是一本摄影集。
Butter to butter is no relish.
千篇一律的东西令人生厌。
Yes, it is.
是的，是我的。