He thought hard and found a way to solve the problem at last.

他努力思考，最后终于想出一个解决这个问题的办法。

youdao

He thought hard for several minutes before striding off once more.

他使劲想了几分钟，又大步走了起来。

youdao

As a young man, he thought people could achieve perfection if they tried hard enough.

作为一个年轻人，他认为，人们如果足够努力，是可以达到完美的状态的。

youdao

There is a kind of manifest and knowing confusion of the two in literature-- and Freud always says that the poets preceded him in everything that he thought--which suggests that it is rather hard to keep these things separate.

文学中二者并没有明确区分-,他想来想去也找不到论据,这就证明,的确很难区分它们。

耶鲁公开课 - 文学理论导论课程节选

He says he thought hard before naming them, and that they are his girls.

BBC: Swiss movement

Head coach David Capel says he has thought hard about the blend of players he now has.

BBC: Northants captain Nicky Boje targets silverware

It would be nice, therefore, to believe that somewhere, the contemporary equivalent of a bored patent clerk is thinking about the problem, and that when he has thought hard enough, a new reality will emerge.

ECONOMIST: Physics