Pema
[医][=phenylethylmalonamide]苯乙基丙二酰胺
🗣️ 情景例句
We communicate with each other by letter.
我们用书信彼此联系。
He emerged as leader at the age of thirty.
他在30岁时出人头地成为领袖。
What about?
找他有什么事吗？