An orange tree with two thousand leaves has a leaf surface area of 200 square meters.

一棵有两千片叶子的橙树的叶表面积为200平方米。

Water sprayed onto them forms instantly into silvery beads (see picture) and rolls right off again—carrying any dirt on the leaf's surface with it.

喷洒到叶面上的水会立刻形成晶莹的水珠（见图片）然后迅速滚落，同时带走叶面上所有的污垢。

Water sprayed onto them forms instantly into silvery beads (see picture) and rolls right off again—carrying any dirt on the leaf’s surface with it.

喷洒到叶面上的水会立刻形成晶莹的水珠（见图片）然后迅速滚落，同时带走叶面上所有的污垢。

And when two or more drops touch, energy gets released in the form of a catapulting action, which " sneezes" the droplets into the air, several millimeters above the leaf surface.

当两个或更多液滴接触时，能量以弹射作用的形式释放， 将液滴“打喷嚏” 到叶子表面上方几毫米的空气中。