leaf spot of tea

例句：

1. 1. The leaves of the tea plant have been spotted with a fungus.
   茶树的叶子上出现了一种真菌。
2. 2.This tea has a distinct leaf spot that distinguishes it from others.
   这种茶有一种独特的叶斑，与其他茶不同。
3. 3.The health benefits of green tea are well-documented, but some people worry about the leaf spot.
   绿茶的健康益处是有文献记录的，但有些人担心叶斑问题。