潜艇是现代海战中水面舰艇面临的主要威胁之一。

Submarine is one of the mostly menaces faced by the warships in the modern sea battle.

youdao

潜艇是现代海战中水面舰艇面临的主要威胁之一。

Submarine is one of the mostly menaces faced by the warships in the modern sea battle.

youdao