Prectolact
双苯丙胺
🗣️ 情景例句
she would call us.
她会打电话过来的。
Is that a book?
那是一本书吗？
When you have finished your experiment, please tidy the lab and put everything back in the cupboards.
做完实验后，请你们把实验室整理好，并把所有的东西放回器皿柜。