Foeman
n. 敌兵, 敌人
🗣️ 情景例句
Do you have any tickets available for that date?
你们有那天的票吗？
I went to see my doctor for a check-up yesterday.
我昨天为检查去看了医生。
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。