Please yourself
请便,请随意
🧩 词语组成解析
🗣️ 情景例句
You're still thinking about something to do, aren't you?
你还在想要找点事做， 是吗？
He must needs swim that is held up by the chin.
身不由己，只得从命。
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。