Mesulphen
二甲基硫蒽
🗣️ 情景例句
Let's talk over coffer.
让我们边喝咖啡边聊吧。
A man knows his companion in a long journey and a little inn.
路遥知马力，日久见人心。
The enormous increase of population will create many problems.
巨大的人口增长将产生很多问题。