Trifluoride
三氟化物
🗣️ 情景例句
Robbie, this new Walkman is absolutely wonderful. Robbie
Robbie 这个新的随身听真棒。
Where can I make a reservation?
我到哪里可以预订？
When you type a letter, the writing appears on a screen in front of you and is recorded onto a computer disk.
当你打一封信时，字迹出现在你前面的屏幕上并顾在电脑的磁盘里。