Manning
n. 人员配备
🗣️ 情景例句
Maybe someone will find it.
也许会有人发现的。
I enclosed some photographs in my letter.
我在信封里装了一些相片。
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。