Passive sonar
[电] 无源声纳
🧩 词语组成解析
sonar
['səunɑ:]
n. 声呐装置，声呐系统;声呐兵;
🗣️ 情景例句
Even if they are kind to Gemma,
即使他们对Gemma很好
I know the boy whose father is a dentist.
我知道那个男孩的父亲是牙医。
My name is Wong.
我姓王。