Is it wrong for McDonald's to trick little kids into nagging their parents to buy the Happy Meals?

VOA: standard.2010.06.24

It's a book that wants to be beautiful, that's happy to be beautiful.

这是一本心心念念着要使自己完美，并且也乐于使自己完美的书。

耶鲁公开课 - 现代诗歌课程节选

So I'm so happy that it's finally time for us to go to the airport, get on a plane and just take off.

所以当我们终于到了机场，坐上了飞机并起飞后，我真是太高兴了。

I've been 实战 - SpeakingMax英语口语达人

"I feel like it's impossible to please the hardcore comic book fans because they'll never be happy no matter what you do.

VOA: standard.2010.06.20

It's very difficult to be happy if we are experiencing severe depression or anxiety.

要快乐并不容易,如果我们感觉很压抑或焦虑。

哈佛公开课 - 幸福课课程节选

So, if you smile at somebody, and you just hate their guts but you want to smile at them, it's--unless you're quite gifted it's difficult to fake a really good, really happy smile.

所以，你对某人微笑，你很讨厌他们，但你要对他们微笑，除非你很有天赋,很难去假笑，伪装真正的微笑。

耶鲁公开课 - 心理学导论课程节选