英语翻译WeretheysaltdomessuchasarecommonalongtheUnitedStatesGulfCoast,andifso,whyshouldtherehavebeensomuchsolidcrystallinesaltbeneaththeflooroftheMediterranean?最好能点出其中的翻译难点,主要是第一小

Question

英语翻译
Were they salt domes such as are common along the United States Gulf Coast,and if so,why should there have been so much solid crystalline salt beneath the floor of the Mediterranean?
最好能点出其中的翻译难点,
主要是第一小句，完全迷惑了我……

Answer 1

它们是盐丘吗,就象美国港湾海岸沿线常见的那种?如果是,那么为什么在地中海底会出现如此多的固态结晶盐呢?（海底的盐应该都融化在海水里了）
salt dome 盐丘
such as (the salt domes that) are common along ...原句省略了括号里的内容