露 (lù) is a verb meaning "to reveal," "to show," or "to appear." It is frequently used in poetic or literary language to describe something becoming visible. For example, 才露 means "just appearing" or "barely showing."
太阳从云层后面露出来了。
tàiyáng cóng yúncéng hòumiàn lùchū lái le.
The sun came out from behind the clouds.
她笑的时候露出两个小酒窝。
tā xiào de shíhòu lùchū liǎng gè xiǎo jiǔwō.
When she smiles, two little dimples appear.
荷花刚露出水面,就引来了蜻蜓。
héhuā gāng lùchū shuǐmiàn, jiù yǐnlái le qīngtíng.
As soon as the lotus flower emerged above the water, it attracted dragonflies.