Hydrodynamics
n. 流体力学, 水动力学\\n[化] 流体动力学
🗣️ 情景例句
It's so good to have you home again ...
真高兴 ，你又回家了……
When the light went out, I was cleaning the yard.
当熄灯的时候，我在清理庭院。
Bleriot set off half an hour later.
半小时后便正式出发了。