Predestination is this book, and turn the casual will miss, read too seriously will tear flow.

缘分是本书，翻的不经意会错过，读的太认真会泪流。

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Methods The culture of oral Candida albicans, the amount of tear flow and the sum of blood cells were investigated in 204 patients with xerostomia.

方法对204例口干症患者进行唾液白色念珠菌培养、泪腺流量测试、血细胞计数。

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Special dyes may be instilled in the eyes to better observe tear flow and to highlight any changes to the outer surface of the eye caused by insufficient tears.

这项检测，灌输到眼睛里面的特殊染料可以帮助我们更好地观察眼泪的流动，并且能够标记因少量眼泪儿产生的眼球外表面的变化。

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The researchers who developed Tropolis said they worked closely with moms and kids to tweak the texture so that it would flow through the tear-off opening.

WSJ: PepsiCo's Tropolis Fruit Puree an Attempt to 'Snackify' Drinks