Piston knock
[机] 活塞敲击
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
knock
[nɑk]
n. 短促的敲打（声）;爆震声;敲击声;敲门（或窗等）声;
vi. 猛烈敲击;与某物相撞;撞到了桌子;
vt. （心）怦怦跳;把…撞击成（某种状态）;批评;
🗣️ 情景例句
We'll find a solution.
我们会找到解决的办法。
I'm going to tell him what to say.
我正要告诉他应该说什么。
So it became known as the gold rush.
成为广大为人知的“淘金热”。