A bad contractor may hide mistakes or blame someone else and nickel-and-dime you with extra charges.

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》

A letter of credit will involve unnecessary extra charges.

信用证包含有不必要的额外开支。

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Most of your extra charges 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。

youdao

As air travelers become inured to baggage fees, airlines are betting they'll accept additional extra charges.

WSJ: Some Apps to Pack for Your Summer Travels

Some games are subscription based, and multi-player games, which are starting to appear, also involve extra charges.

ECONOMIST: Mobile gaming

For that privilege, banks have found many ways to extract extra charges while paying nothing for the float.

ECONOMIST: Letters