Polyvalency
[医]多价（性）
🗣️ 情景例句
Our competitor has a better product. There's no denying it.
无可否认，我们的竞争对手拥有更好的产品。
Depend on others and you always repent.
依靠别人总要后悔。
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。