I listened to the thwack of the metal balls.

我听着金属球相撞的声音。

《柯林斯英汉双解大词典》

Galileo rolled small metal balls down the incline.

伽利略让小金属球从斜面滚下。

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Outside the -gallery, giant metal balls were piled high on top of each other, taking over the courtyard.

在画廊的外面，巨大的金属球互相叠在一起堆得很高，占据了整个院子。

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Labyrinth 2 is just what it sounds like: a maze through which you have to guide eerily realistic metal balls.

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But these rockets also have in them, I picked up today at the scene, you know, lots of small metal balls.

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At Beth Israel Deaconess Medical Center, Dr. Stephen Epstein, attending physician in the emergency department, said X-rays of patients showed metal balls that appeared to be ball bearings.

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