Prectolact
双苯丙胺
🗣️ 情景例句
Is this your first trip to China?
这是你第一次到中国吗？
I want to buy some traveller's checks.
我想买些旅行支票。
Maybe it was useful for some people, but it wasn't for me.
它可能对一些人有用，但对我没用。