Phono-
[医] 音, 声
🏥 医学释义
声音
🧩 词语组成解析
n. 留声机,唱机
🗣️ 情景例句
Today is pretty cold.
今天挺冷的
He that will not work shall not eat.
不工作者不得食。
and by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated.
测出回声间隔的时间，便可算出该处海洋的深度。