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
You are in great shape, Richard.
你的身体状况好极了， Richard。
To know the disease is half the cure.
找出病根等于治愈了一半。
Excuse me. Is there a post office near here?
请问，附近有邮局吗？