While international law calls on submarines to surface and raise their national flags when cruising in the territorial waters of a foreign nation, the submarine didn't.

尽管按照国际法规定，一国潜艇在别国领海行驶时，必须浮上水面，并悬挂本国国旗，但中国潜艇却没有这样做。

youdao

While international law calls on submarines to surface and raise their national flags when cruising in the territorial waters of a foreign nation, the submarine didn't.

尽管按照国际法规定，一国潜艇在别国领海行驶时，必须浮上水面，并悬挂本国国旗，但中国潜艇却没有这样做。

youdao