Mcconnells
[地名] [美国] 麦康奈尔斯
🗣️ 情景例句
Where's the coffee?
咖啡在哪？
Where is the telephone office?
电话局在什么地方？
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。