Isohygrens
等水分线(皂块失水试验)
🗣️ 情景例句
How long do you intend to stay?
你打算在这儿呆多久？
The teacher was not at all happy with his students.
那位老师对他的学生毫不满意。
We are trying to collect money for a wildlife project.
我们正在设法募集资金搞一个野生动物项目。