Question

请帮忙分析一下这个句子的句子成分，

This study evaluated the effect of dietary xanthophylls from red paprika fruit extract on UV-induced skin damage.

Answer 1

这是主系表结构包含了定语从句。 the water table是主语， is是谓语，the underground boundary是表语。 below which这里which指的是 boundary，所以是定语从句。 all the cracks and pores are filled with water是完整主谓宾结构，所以below which一起在句中做状语。