It was a lucky thought, a happy thought.

这是一个幸运的想法，一个快乐的想法。

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A happy thought struck her.

她的心头突然涌出一个愉快的念头。

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Suddenly a happy thought struck her.

她突然想起一个很妙的想法。

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She was never happy with her school work until she thought it was perfect.

VOA: special.2010.04.25

Because I thought about it a lot Welles chose that word I guess obviously that frame was a happy picture ? In the word? Why that word?

因为我对这个问题想了很多,为什么威尔斯要选择这个词,我觉得很明显，这个镜头是幸福的,词内涵的深意？还是为什么选这个词？

麻省理工公开课 - 电影哲学课程节选

With energy exports, mainly from Alberta, driving the Canadian economy, this is not a happy thought for Canadians.

ECONOMIST: Canada

Year after year, the Edinburgh Festival confirms that happy thought.

ECONOMIST: The stage of nations

Then I thought how happy I was for my family, and then immediately I thought of (Big East founder and first commissioner) Dave Gavitt and what he formed, and all of us in some way or another flourish because of Dave Gavitt.

WSJ: No. 4 Louisville wins Big East title