because 和 why
问题描述：
because 和 why
They cannot be easily seen by hunters,this is（）they have the colours much like the trees.
填because why?
答
WHY表原因（在从句中）
because 和 why
They cannot be easily seen by hunters,this is（）they have the colours much like the trees.
填because why?
WHY表原因（在从句中）