Penthienate
[医] 环戊噻吩
🗣️ 情景例句
Thanks, Son.
谢谢你， 儿子。
He has been working in advertising for ten years, but now he is teaching.
他曾经在广告公司服务十年，但现在在当老师。
but where had it come from?
但它是从哪儿来的呢？