Food experts say, vegetable juice drink, squeeze could affect the secretion of saliva digestive enzymes.

食品专家说，蔬菜榨取汁液饮用，可能会影响唾液中的消化酶分泌。

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Over the periods their saliva, a mild, digestive juice like our own, was converted into a poison that defies analysis even today.

经过很长的时代，它们的唾液- - -一种像我们的唾液一样温和的消化汁- - -被转变成了一种到今天还无法分析清楚的毒液。

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Over the periods their saliva, a mild, digestive juice like our own, was converted into a poison that defies analysis even today.

蛇的唾液本来和我们人的消化液一样柔和，但经过漫长的时间，演变成了今天仍无法分析清楚的毒液。

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