V-2
n. -2's V-2 导弹(第二次世界大战时德国使用的 V-1 改进型地对地导弹) [亦作 V-two]
🗣️ 情景例句
How did the test turn out?
考试结果怎样？
You two don't have much contact
？ 你们俩没怎么联系吗？
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。