Neutraphylline
双羟丙茶碱
🗣️ 情景例句
I'll do it. I'll talk to them.
我来做， 我去跟他们谈一谈。
The country is rich in natural resources.It has mineral deposits.
这个国家有丰富自然的资源。它有很多的矿床。
Ken gave up smoking two years ago. He'd been smoking for thirty years.
两年前肯戒了烟，之前他抽了三十年烟。