submarine vessel 潜水艇
submerge 淹没
underwater 水下的
A: Has the submarine submarined yet?
A：潜水艇已经潜行了吗？
B: Yes, it submarined ten minutes ago.
B：是的，它十分钟前就潜行了。
1) 潜行：像潜水艇一样在水下移动
2) 潜伏：为了躲避而进入水下状态
1. 潜行；潜水
verb
1. To move or travel underwater, typically in a submarine, or to hide beneath the surface of the water.