“Lithops（注：一种植物，中文名字石生花） could not survive in many areas that they are found were it not for their capacity to store water. ”
请教这句话怎应翻译才好？我找不到谓语。谢谢

that they are found 定语从句，修饰areas, 关系代词that=in which。
were it not for their capacity to store water. 倒装句，表示与现实相发的假设，相当于 if it were not for their capacity to store water.

整个句子有两个分句，第一个分句的谓语为could not survive，第二个分句的谓语为 were not 。整个句子用的是虚拟语气。

翻译：要不是由于有贮存水分的能力，石生花在很多发现它们的地方都会是无法生存的。