Water surges from the cells on the inside of the leaf to those on the outside, causing the leaf to rapidly flip in shape from convex to concave, like a soft contact lens.

水从叶子内部的细胞涌向外面的细胞，导致叶子迅速地从凸向凹翻转，就像一片柔软的隐形眼镜。

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Would you prefer soft contact lenses or hard ones?

你比较喜欢软式隐形眼镜还是硬式的？

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Corneal ulcers occur most often in patients who use extended-wear soft contact lenses.

角膜溃疡最常发生于长期使用软性角膜接触镜的病人。

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Finally, you may also wish to try a small rubber tool designed specifically to remove (or insert) soft contact lenses.

CNN: How can I safely remove a stuck contact lens?

As a young patent lawyer in the early 1960s he went behind the Iron Curtain and brought back the metal sutures that gave birth to U.S. Surgical Corp. and the technology to make soft contact lenses.

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Romney slightly pivots towards the person who is talking, has a slight smile and generally soft eye contact with that individual.

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