think of 想想，想起

造句：

I always think of you as one of the family.

我一直把你当成自家人。

We think of you as one of the family.

我们把你看作家中的一员。

And again, we must think of the cost.

再说，我们必须考虑成本。

Come to think of it, he did mention seeing you.

想起来了，他确实提到看见过你。