For a time he contemplated a career as an army medical doctor...

有段时间，他考虑去当军医。

She contemplates leaving for the sake of the kids.

她考虑为了孩子而离开。

As he lay in his hospital bed that night, he cried as he contemplated his future...

那天晚上，他躺在医院的病床上，想到未来，他哭了起来。

That makes it difficult to contemplate the idea that the present policy may not be sustainable.

那让人难以认真思考这个可能，即目前的政策也许并不能持续下去。

He contemplated his hands, still frowning.

他盯着自己的双手，眉头紧锁。