Panhydrometer
通用(液体)比重计
🗣️ 情景例句
Where will we put all the presents?
我们把这些礼物放在哪里？
I'm too tired.
我太累。
My pen dropped on the ground when I was walking in the park.
当我在公园里散步的时候，我的钢笔掉到地上了。