Contracept
vt.(使)避孕
🗣️ 情景例句
I'd like to convert some RMB yuan to US dollar, please.
请将我的一些人民币换成美元。
Pupil. He is studying.
学生。正在学习。
Why does aperson standing in a bus or train tend to fall when a sudden start is made?
一个人站在公共汽车或火车上，当车突然开动时，他为什么会倾倒呢？