Medmain
[化] 抗5-羟色胺
🗣️ 情景例句
We haven't heard from him for weeks but we're still hoping for a letter.
我们已经有几个星期没有他的消息，但仍然盼望着他的来信。
A man is not a horse because he was born in a stable.
人并不因为生在马厩里就成了马。
Jack is the strongest boy in the class.
杰克是全班最强壮的男孩。