Siloing
装秣窑的过程
🗣️ 情景例句
Where are you going during Summer vacation?
暑假你打算去哪儿？
If the old dog barks, he gives counsel.
如果老狗叫，他是给忠告。
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。