Knocking
[机] 爆震内燃机
✅ 同义词
🗣️ 情景例句
with one real intergenerational program.
用一套真正跨辈份的活动。
I'd like to travel first-class.
我要头等舱。
Everybody around me was smoking and I felt extremely uncomfortable.
我周围的每个人都在吸烟，我感到非常不自在。