Contrainjector
反向喷射器
🗣️ 情景例句
to schedule one hour a week--to start with.
安排一星期一个小时。
Every man is best know to himself.
自己最了解自己。
In the centre of the hall, there were a number of tall structures which contained coloured lights.
展厅中央是装有彩色灯泡的许多高高的构件，