sponger

noun

1. 吃白食的人；揩油者
   a person who gets money, food, etc. from other people without doing anything for them or offering to pay

1. 靠他人养活的人;寄生虫
   If you describe someone as a sponger, you mean that they sponge off other people or organizations.

1. He's a real sponger; I don't think he's ever had a job.
   他真的是个寄生虫；我认为他从未工作过。
2. A strong man is not willing to be a loafer or sponger.
   身强力壮的人谁也不愿吃闲饭。

noun

1. a follower who hangs around a host (without benefit to the host) in hope of gain or advantage

   Synonym:    leechparasitesponge

2. a workman employed to collect sponges