"I think happy enough" she said "but who knows?"

我觉得她挺开心的，但谁又知道呢？

youdao

Research shows that trying to think happy thoughts when we're depressed can actually make our current unhappiness even more obvious.

研究表明沮丧时试图往好的方面想只会让不快乐的现状变得越发不可收拾。

youdao

If you think that your life will transform overnight just because you think happy thoughts every day then you are about to be very disappointed.

假如你认为你的生活会因为你每天都回想美好的回忆而一夜改变，那么你可能会非常失望。

youdao

I guess I was a fool to think I could make you happy.

VOA: special.2009.06.27

Now I think you may be rather happy to hear that this is the last time --I'm pretty sure that this is the last time - that we will have to discuss, at least at any length, Milton's worries about his unreadiness and his un-preparation.

你们可能会很高兴知道,这是我们最后一次-我对此非常确信,最后一次需要仔细的讨论，弥尔顿对他自身的犹疑和毫无准备的焦虑感。

耶鲁公开课 - 弥尔顿课程节选

So if I sleep more, I think I'll be more happy and more productive.

所以，如果我补充睡眠的话，我想我会心情舒畅，干活也更有效率。

I need 实战 - SpeakingMax英语口语达人

"You think we were happy, you should have seen those guys, " said Gregory Hall, one of the rescue drill operators, after Saturday's breakthrough.

CNN: Rescue drill reaches 33 trapped Chilean miners

"I'll be speaking with the owner of the Rajasthan Royals and captain Shane Warne and discussing the security arrangements but if they are happy that it's going to be safe then I think I'll be happy with that, " he said.

BBC: Pietersen plans IPL safety talks

So I think that we are happy to be a part of responsible oversight.

WHITEHOUSE: Press Briefing