Echosounders
(echosounder 的复数) [医]超声探测器
🗣️ 情景例句
thank you very much.
十分感激你。
Truth fears not the flames of slander and injustice.
真金不怕火。
It was necessary, therefore, to invent instruments that neither slumbered nor slept.
因此，有必要发明一种仪器，既不打盹儿，也不睡觉。