landlocked

蒙古是世界上最大的内陆国家。

Mongolia is the world's largest ___landlocked country.

这座山把我们的小镇完全围住了。

The mountains completely ___landlocked our small town.

乌伦古湖是新疆最大的内陆湖。

Ulungur Lake is the largest ___landlocked lake in Xinjiang.