Baby boys do not seem to notice the difference in the size of the ball, but girls immediately become excited and begin to make noises that sound like language.

男婴似乎没有注意到球的大小的不同，但女婴立即变得兴奋，并开始发出听起来像是语言的声音。

youdao

The size of the ball and the size of the field are different too.

球和场地的大小也不同。

youdao

So 1.1 times 10 to the -31 meters is not, in fact, a significant number when we're comparing it, for example, to the length of a ball, or the size of the baseball field.

所以1，1乘以10的负31次方米，事实上并不是一个很重要的数字，举例来说，当它与一个球的长度，或者一块棒球场地对比时。

youdao

So 1.1 times 10 to the -31 meters is not, in fact, a significant number when we're comparing it, for example, to the length of a ball, or the size of the baseball field.

所以1，1乘以10的负31次方米，事实上并不是一个很重要的数字，举例来说，当它与一个球的长度，或者一块棒球场地对比时。

麻省理工公开课 - 化学原理课程节选

So, essentially you've got a positive ball which is identical to the size of the atom.

首先你要有一个和原子差不多大小的,带正电荷的球。

麻省理工公开课 - 固态化学导论课程节选

For example, a portion of pasta according to the U.S. Department of Agriculture would be about the amount of pasta that would be the size of a tennis ball.

比如说,意大利面的每日摄入量,根据美国农业部,是如此的份量,大概和网球一样大小

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The size of the ball matters, too, with greater forces exerted by larger balls, said Dr. Plant.

WSJ: Soccer 'Header' Impact Likened to Hard Punch

The size of the ball, on the other hand, has been increased by 2mm in a bid to slow the game and improve it as a spectacle.

BBC: Table tennis plays by the rules

There, on the right side of his brain, was a tumor the size of a tennis ball.

FORBES: Taking on a Monster