firth

例句：

1. 1. The firth is home to a variety of marine life.
   这个峡湾栖息着各种海洋生物。
2. 2. The firth is known for its crystal-clear waters and picturesque scenery.
   这个峡湾以其清澈的水域和如画的风景而闻名。
3. 3. The firth is often used as a shortcut for tourists traveling between two major cities.
   这个峡湾经常被用作游客从两个主要城市之间的捷径。