Hdm
分层开发方法论
🗣️ 情景例句
Nowadays many young people cohabit together without legal permission.
如今很多年轻人未获得法定允许就一起同居了。
Won't you come alone with me? My boss wants to see you.
能跟我一起来吗？我们老板有事要见你。
Excuse me! Are you from the USA?
对不起，你是美国人吗？