Celfume
溴甲烷
🗣️ 情景例句
Susan's vice-president in charge of new toys and games.
Susan是主管新玩具和新 戏器具的副总裁。
We can offer a discount in progressive stages according to the size of the order.
根据订购数量的大小，我们可提供累进的折扣。
He was never seen again.
后来再也见不到这个人了。