Isthmus faucium

例句：

1. 1. The Isthmus faucium is a natural barrier separating the two countries.
   海峡是两国之间的自然屏障。
2. 2. The fjord is famous for its crystal-clear waters and abundant marine life.
   峡湾以其清澈的水域和丰富的海洋生物而闻名。
3. 3. The strait connects two continents, playing an important role in the world's trade network.
   海峡将两个大陆连接起来，对世界贸易网络起着重要作用。