Indoor and outdoor sports activities both make the eyes focus on more distant objects, which prevents the eyes from changing shape.

室内和室外运动都能使眼睛集中在更远处的物体上，从而防止眼睛改变形状。

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A hydraulic clamp, which prevents the arms of the wheel moving while the gondola is docked, is removed, allowing the wheel to turn.

液压夹具可防止贡多拉停靠时轮子的臂部移动，移除这个液压夹具可以让轮子转动起来。

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Green tea leaves are steamed, which prevents the EGCG compound from being oxidized.

绿茶的茶叶通过蒸煮防止了EGCG化合物被氧化。

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Roche 's Xenical, which prevents the body from digesting fat, causes diarrhea in some patients.

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There exists a juvenile-growth hormone which prevents the ants from maturing past the drone stage.

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This creates a wave at the stern, which prevents the vessel squatting too low in the water.

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