Knocking
[机] 爆震内燃机
✅ 同义词
🗣️ 情景例句
I happened to meet her on the bus.
我凑巧在公共汽车上碰见她。
He recommended me for the post of principal.
他推荐我担任校长。
It took the police nearly an hour to get the traffic on the move again.
警察花了将近一个小时才使车辆又开起来。