Form the pastry into a ball with your hands.

用手把油酥面团弄成球形。

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Form the dough into a ball with your hands.

用手把面团搓成球。

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Once it reaches the surface of the soil, the slug undergoes another transformation: Most of the cells turn into a stiff stalk, while the others crawl to the top and form a sticky ball of spores.

一旦接触土壤表面，这条“鼻涕虫”就会发生另一种变形：大部分细胞变成一个硬柄，其余则的爬到顶端形成一个黏黏的孢子球。

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People form containers by pressing a ball of clay into a given shape.

VOA: special.2009.09.09

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'

Spain had possessed the ball for roughly two-thirds of its games, turning each match into a high-class version of keep-ball, and in the process, becoming the first team to turn passing the ball into a form of defense: Like a clock-eating drive in football, if Spain has the ball, its opponent can't score and the Spanish keep the ball so well that they barely give up any chances, let alone goals.

WSJ: Euro 2012: The Reign in Spain Continues

Unlike in a healthy shoulder, where the humerus ends in a ball shape and fits into the shoulder blade to form a shoulder, in reverse shoulder replacement surgery the anatomy is reversed.

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