The key is my signature before the service.

來源: 於 2009-09-18 19:04:00 [舊帖] [給我悄悄話] 本文已被閱讀：次

Like the example I already mentioned, you go to car repair service (or your house roofing repair service) to consult them 20 minutes. Then they send you $200 bill. Will you pay?