The big ball is heavier than the small ball.

大球比小球重。

youdao

Nina can, apparently, levitate a small ball between her hands.

尼娜很显然能够使一个小球在她双手之间上升。

《柯林斯英汉双解大词典》

You'll need a small ball.

你需要一个小球。

youdao

At the base of the hair root is a small ball-like formation called a bulb.

VOA: special.2011.04.05

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

VOA: special.2009.01.31

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

VOA: special.2010.05.29

Does the smacking of a small ball straight down a well-mown stretch of grass really require special clothes?

WSJ: Tina Gaudoin on Style: Golf Fashion

It was filled with a waxlike substance, the middle of which had a round indentation, in the shape of a small ball.

NEWYORKER: Creation Myth

Injuries caused by small ball bearings, which have been reported by some Boston hospitals, are potentially more troubling than larger shrapnel wounds, Dr. Sarani said.

WSJ: Injuries Resemble Traumas of War