Dusan
n. (Dusan)人名；(德)杜赞
🗣️ 情景例句
I can tell.
我能觉察到。
He has a bowl of soup.
他有一碗汤。
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。