🗣️ 情景例句
Do you want to see the winter jacket on me, Susan?
你想看看我穿上冬季的夹克怎样吗， Susan？
Rain before seven: fine before eleven.
早雨不过午。
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。