sucking root的意思|示意

The American Heritage Dictionary points to a different Indo-European root for the sucking kind of leech.

美国传统词典上指出吸血虫leech来自一个不同的印欧词根。

Of the 49 species found on camellia, 19 are leaf-eating, 7 stem-boring and bark-gnawing, 21 sap-sucking and 2 root-eating.

茶花害虫有49种，其中食叶的19种，蛀干和啃食枝皮的7种，吸汁的21种，食害苗根的2种。