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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In this example, we will disable all non-leaf nodes, because it is common that non-leaf nodes are just used for categorizing the items that you want to perform tasks on.

在本示例中，我们将禁用所有的非叶节点，因为通常非叶节点只用来对希望对其执行任务的那些项进行分类。

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Life is like a trace of roaming cloud, and also like a piece of fallen leaf; cloud perched with sky is transient and leaf depended on tree is in a rush.

人生如同一丝游云，一片落叶；云与天宇的相栖是暂短的，叶与树相依是匆匆的。

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And look out the window,dear, at the last ivy leaf on the wall.

VOA: special.2009.08.01

He stayed up all night and counted every leaf on the tree and it came very close to what Rituparna said, so he--the next morning-- believed Rituparna.

他彻夜未眠,数了树上的每一片叶子,发现结果和睿都巴若那所言相差无几,所以他在...第二天早晨...,相信了睿都巴若那

耶鲁公开课 - 金融市场课程节选

Ice crystals form on the leaf surface.

VOA: special.2010.01.12

To hear the Insect on the leaf pronouncing on the too much life among his hungry brothers in the dust.

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On Leaf Cay, for example, yard-long rock iguanas sun themselves with a languor unbecoming an endangered species.

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In 1964, the Canadian parliament adopted a national flag with a red maple leaf on a white background.

CNN: Sunday,