They have no natural enemies in foreign waters.

它们在外国海域没有天敌。

Flags are flown when a ship is entering, or leaving, a harbor, and when a ship is sailing in foreign waters.

当船舶进出港口以及在外国水域航行时，会悬挂旗帜。

I dug wells and drank foreign waters, and I dried up with the sole of my foot all the streams of Egypt.

我挖井喝外邦的水，用脚掌踩干埃及一切的溪流。