R.a.f
皇家空军
🗣️ 情景例句
You can say that again.
你说的一点没错。
While we were having breakfast,John was talking on the telephone.
当我们正在吃早餐时，约翰正在打电话。
Before you leave the lab, make sure the electricity is turned off and the windows are shut.
你们离开实验室前，务必要关上电源，关好窗户。