Folke
[人名] 福克
🗣️ 情景例句
Seven?
七？
I like your new coat.
我喜欢你的新外套。
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。