He couldn't tell if she was laughing or crying.

他弄不清楚她是在笑还是在哭。

《牛津词典》

But laughing or crying may be.

但是笑或哭或许是可以的。

youdao

There will be no more death or mourning or crying or pain

神要擦去他们一切的眼泪。 不再有死亡，也不再有悲哀，哭号，疼痛，因为以前的事都过去了。

youdao

But Professor Rottenberg says those who felt shame or embarrassment while crying were less likely to report that crying had been helpful.

VOA: special.2009.01.28

And she feels proud that she was able to do it. "Sometimes you can feel defeated when you have to study for a test and your baby is crying or something else is going on,"

VOA: standard.2009.12.04

Does your child run out of breath when eating or crying?

CNN: Ventricular septal defect (VSD)

By delivering nearly imperceptible vibrations to select areas of the chest, KOR-fx activates neural pathways that subconsciously monitor the vibrations of the chest cavity that naturally occur when speaking, laughing or crying.

ENGADGET: Immerz KOR-fx 'acousto-haptic' gaming tech gets a ship date

In contrast, entrepreneurs can lose face by insulting someone in public, refusing invitations and gifts or by behaving inappropriately, like losing their temper or crying -- acts that are seen as lack of self-control and weakness.

CNN: Doing business in China: Five tips for success