中文：
我从网站上得知这双靴子有男生和女生的尺寸。
一下是将上面句子以英文表达：
I know that this boots have size of two kinds such as men's and women's from website.
I know from websites that this boots has size of two kinds such as men's and women's.
我想请问上面哪一个英文是对的，还是都可以呢？
我第一句的想法是以名词子句当受词，
I know (名词子句) from websites.
但是这样后面的补语from websites好像又跟前面的名词子句连成一串，不知道这样有没有问题呢？
恳请各位指导，谢谢。

两者差异不大，但 this boots has size of two kinds such as men's and women's 很中式英文

给您参考 I know there are both sizes of men's andwomen's on the website.

当受格能省略that吗?

谢谢解惑谢谢解惑

I know from the website that these boots have different sizes, such as a men's size and a women's size.I know from the website that these boots have two different sizes, such as men's and women's.