Ventilating device
[计] 通风设备
🧩 词语组成解析
[计] 通风
🗣️ 情景例句
Yeah? What was it?
是吗？ 是什么惊喜？
No matter what she says, don't show you are afraid.
不论她说什么，你也不要让人知道你害怕了。
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。