Kbpi
[医]Knowledge Based Patient Information
🗣️ 情景例句
Thanks.
谢谢。
There's no such thing as a free lunch.
天下没有白吃的午餐。
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。