W.c
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🗣️ 情景例句
What would you like to see me about?
你找我什么贵事？
Better are small fish than an empty dish.
有胜于无。
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。