玩累了，我和他肩并肩地坐了下来，同时开怀大笑。

Play tired, he and I sat down side by side, while laughing.

youdao

这本身是件令人无奈的事情，而孩子们会觉得有趣而开怀大笑，他们在开心的同时也学到了知识。

This is a groaner, but one that the kids will get a giggle over -- and they'll be learning as they laugh.

youdao

同时还发现开怀大笑100次等同于骑自行车15分钟。

It also found laughing 100 times is equivalent to the exercise of cycling for 15 minutes.

youdao