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
Marilyn, I have to tell you something.
我得告诉你， Marilyn
Storms make trees take deeper roots.
风暴使树木深深扎根。
and you may well wish to boost your pension income.
你就很希望能够提高你的养老金收入。