Impactometer
碰撞(空气)取样器
🗣️ 情景例句
You can put it that way.
你可以那样说。
How much does the elephant weight?
这个大象有多重？
Of course. And why not buy some English tapes and some books to go with them? I'm sure you'll find them useful.
当然了。干吗不买些英语磁带和与之配套的书呢？我相信你会觉得它们有用的。