Silicofluoroform
三氟硅烷
🗣️ 情景例句
They have an opening.
他们有一个空房间。
He hears the violin squeaking.
他听到了小提琴发出的声音。
Will you please sweep the floor and tidy the classroom every day?
请你们每天都打扫地板、整理教室，好吗？