Camporee
n. 童子军野营会
🗣️ 情景例句
If you have something you want to talk about,
假如你有什么事情要谈，
I swear I'll never tell anyone.
我发誓不告诉任何人。
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。