The tiger, thinking himself on a roll, swaggered up to an elephant that was quietly munching on some grass, and roared at the top of his voice: "WHO IS THE MIGHTIEST OF ALL THE ANIMALS IN THE JUNGLE?"

老虎简直美得飘飘欲仙，它又看到一只大象在路边乖乖吃草，就大摇大摆地走过去，用尽全力对大象怒吼：“你知道谁是森林里最无敌的动物吗？”

youdao

The good thing about my birthday is that it's right at the beginning of summer. Then you can play outside in the sun, and you can roll over in the grass when you laugh.

我过生日时好在是夏天刚开始，你可以在太阳下玩，还可以笑着在草地上滚来滚去的。

youdao

Imagine the satisfaction of stealing down to you own particular drinking spot, choosing your own particular tree to scrape your claws on, finding your own particular bed of dried grass to roll on.

选择一棵自己喜欢的树把爪子钩上的那种满足；找到一处专属于自己的干草窝后，在上面打滚的愉悦。

youdao

Then allergy sufferers will be able to frolic in the flowers and roll in the grass and eat peanuts just like everyone else.

CNN: Where do allergies come from?

Some soccer teams wet the field before a match to make the ball roll faster, while baseball teams grow out grass to slow ground balls.

WSJ: In Golf Rivalry, Important Equipment Includes a Mower