Question

i take it that...

问下这个结构的意义是什么

Answer 1

i take it 的意思是，“我把这当做...”“我从...中明白”
例：
-That slut must be a call-girl.
-A purely professional opinion, I take it?
我可以把这当做是个专业的意见？
2、I take it from your silence that you don't want to stay.
我从你的沉默中明白你不想留下。

其实这个词组的含义楼主多少也能理解吧，就是没找到准确的中文意思而已。语感这东西很妙的。还是要靠自己理解。