He wound the wool into a ball.

他把毛线缠绕成一团。

《牛津词典》

Thomas screwed the letter up into a ball.

托马斯把信揉成一团。

《柯林斯英汉双解大词典》

I unravelled the string and wound it into a ball.

我把绳子解开并绕成一个球。

《牛津词典》

Then while the writhing pitcher ground the ball into his hip, Defiance gleamed in Casey's eye, a sneer curled Casey's lip.

VOA: special.2011.04.04

And then we let the ball develop into a fully grown inner ear.

接下来，我们让泡囊发育成一个成熟的内耳。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

Mr. Mindon saw a letter crushed into a small ball on the floor.

VOA: special.2009.01.31

Form dough into a ball, and then cut the ball in half, handling the dough as little as possible.

NPR: 'The Story of Apple Pie'

In fact, they settled down so much that they no longer conveniently rolled up into a ball for the nightly weigh-in.

BBC: By Hugh Warwick

If using a stand mixer, attach the dough hook and beat on high speed just until the dough gathers into a ball, about 1 minute.

NPR: Two Centuries of 'Baking in America'