This kind of tea could act as aid to digestion

This kind of tea could act as an aid to digestion.

这种茶可以助消化。

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　　act as: 1) do the work of; serve as 当作；充当 2) play the role of 担任……的角色
　　再如：
　　A trained dog can act as a guide to a blind person.
　　一条经过训练的狗可以给盲人当向导。
　　One of his friends acted as the gobetween in this business.
　　在这件事中，他的一个朋友充当了中间人。