Perfluorodimethylcyclohexane
全氟二甲基环己烷
🗣️ 情景例句
and how hard it is
他还说这件事很难
It is a blind silly gooes that comes to the fox's sermon.
只有盲目的笨鹅才会去听狐狸讲道。
Where are the balls?
球在哪里？