Detectoscope
水声探 测器, 水中听音器
🗣️ 情景例句
Thanks. I'll contact you.
谢谢，我会再跟你联络的。
No, he doesn't.
不，他没有。
Latham made another attempt a week later and got within half a mile of Dover, but he was unlucky again.
莱瑟姆一周以后也作了一次尝试，飞到离多佛不到半英里的地方。