A bad contractor may hide mistakes or blame someone else and nickel-and-dime you with extracharges.
一个不道德的承包商可能会隐瞒自身的失误或归咎他人，以额外的收费耗尽你的经费。
《柯林斯英汉双解大词典》
2
Most of your extracharges were for phone calls and room service.
您大部分的额外费用是电话费和房间服务。
3
If you plan to pack a couple of credit CARDS and head overseas, brace yourself for an unpleasant travel memento: Extracharges on your credit card bill.