You have no idea what the faces behind them look like.这是一个什么从句?

问题描述:

You have no idea what the faces behind them look like.这是一个什么从句?

主句:You have no idea
从句:what the faces behind them look like
这是一个由what引导的宾语从句,同时what又在从句中做look like的宾语,是从句的一部分.