Farvitron
线振质谱计
🗣️ 情景例句
How you all doing ?
你们大家怎么样？
I couldn't believe my ears.
我真的不敢相信。
When you come to think about it, there are only four ways you can deal with rubbish: dump it, burn it, turn it into something you can use again, attempt to produce less of it.
倾倒、焚烧、把垃圾变成再生材料或试图少产生一些垃圾。