Stagoscopy
液滴观测镜法
🗣️ 情景例句
Dinner's on me.
晚饭我请客。
Cindy's sister is coming to stay with her a week from tomorrow.
辛迪的妹妹从明天起一个星期以后将过来和她住在一起。
We need them urgently.
我们急需这些资料。