Singing makes you feel happy.

唱歌使你高兴。

youdao

youdao

He just walked away, continuing with the happy song he had been singing.

他只是走开了，继续唱他刚才唱着的欢快的歌。

youdao

Socrates explained that the swan was singing because it was happy.

VOA: special.2010.04.11

Are these happy folks singing there?

这是快乐的人在唱歌吗

耶鲁公开课 - 聆听音乐课程节选

It is not uncommon to see young people singing Happy Birthday or organizing other public displays of affection in Moscow.

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As a matter of fact, they're so happy they're singing karaoke in the backseat.

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