Thioxene
二甲基噻吩
🗣️ 情景例句
how could I live in Los Angeles
我怎么能住在Los Angeles
There is no general rule without some exception.
普遍规律必有例外。
He say he'll write a letter soon. He hopes we are all Well.
他说他很快会写信的。他祝我们大家身体好。