Hydrography
n. 水文学, 水道测量术
🗣️ 情景例句
but they need me at the hospital today,
但今天医院有事，
What's your favorite pastime?
你最喜欢的消遣是什么？
It will be found that the weight moves but slightly or not at all.
结果会发现，重物是动了，但动得很小，甚至没动。