Binitro
二硝基
🗣️ 情景例句
Aren't you a little scared?
难道你不会感到有点紧张吗？
In time of prosperity,friends will be plenty.
走运时候朋友多。
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。