n.[C]

1. 【動】水蛭；歐洲醫蛭
2. 搾取他人金錢者；【喻】寄生蟲
   Their 30 years-old son is just a leech, yet they continue to support him.

   他們那個三十歲的兒子只是一個寄生蟲，而他們還繼續負擔他的生活。

3. 【古】醫生

vt.

1. 【古】用水蛭替……放血；治療
2. 依附並搾取
   Her relatives leeched her for her money like parasites.

   她的親戚像寄生蟲似地搾取她的錢財。

vi.

1. 依附並搾取別人[（+onto）]
   leech onto another's fortune

   搾取他人的財富

n.

1. a parasitic or predatory annelid worm with suckers at both ends, examples of which were formerly used in medicine for bloodletting. [Hirudo medicinalis (medicinal leech) and other species, class Hirudinea.]
2. a person who extorts profit from or lives off others.

v.

n.

n.