Mesogene
中深成的; 中源
🗣️ 情景例句
Too easy?
太简单？
Is marriage finding someone to share life with?
结婚可是在寻觅共同度过人生的人？
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。