🗣️ 情景例句
Oh, five or six years ago.
哦，五六年前。
You ought to have that coat cleaned and pressed.
你应该把那件大衣清洗并且压一下。
The further off this solid obstruction, the longer time will elapse for the return of the echo.
固体障碍物越远。回声返回所用时间就越长。