Barde
n. 铠甲
✅ 同义词
🗣️ 情景例句
We are in the red.
我们有亏损。
I will go to the beach.
我将去海边。
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。