Pentas
(Penta 的复数) [美口]五角大楼, 美国国防部
🗣️ 情景例句
I care about the practical things.
我关心实用的事物。
The doctor advised me to take better care of myself.
医生劝我要多照顾自己。
So was born the echo-sounding apparatus, now in general use in ships.
这样就产生了目前各种船舶上普遍应用的回声探测仪。