parasite
noun
ˈpærəsaɪt
noun
1
a
plant
or
animal
that
lives
on
or
in
another
plant
or
animal
and
gets
food
from
it
寄生植物; 寄生动物; 寄生虫
2
a
lazy
person
who
does
not
work
but
depends
on
other
people
–
used
to
show
disapproval
[非正式] 靠他人为生的人，寄生虫〔含贬义〕
informal