Hydrodynamics
n. 流体力学, 水动力学\\n[化] 流体动力学
🗣️ 情景例句
I've been through every section with you, Richard.
我和你一起检视过每个部分， Richard。
It's a bit too hard.
这有点太难了吧。
like the cooling of a hot kettle or the wearing-out of a pair of shoes.
就像一壶热水迟早会凉下来，一双鞋渐渐会磨破一样。