海口

Watts Lake began as a marine inlet.

瓦茨湖当初是一个入海口。

I challenged him to make good his boast.

我给他出了个难题，让他兑现自己夸海口。

Through Heilongjiang a downstream big talk and Japanese sea are interlinked, via terraqueous join " Eurasia bridge " , execute through traffic of water, land and river sea through transport.

通过黑龙江出海口与本海相通，连接“欧亚大桥”，实行、联运和江海联运。