moocher

1. I see, you're a tax moocher.
   我明白了，你是一个征税员。
2. If your moocher is a close friend, you may want to give him a chance to change.
   如果这个爱贪便宜的人是你的好朋友，你可以给他机会改正。
3. But a moocher is only half the problem.
   但是，游手好闲者是问题的一半；

noun

1. someone who mooches or cadges (tries to get something free)

   Synonym:    moochcadgerscrounger