Luggage in excess of 100 kg will be charged extra.

超过100公斤的行李要额外收费。

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You may also be charged extra for layout help, editing, design of a book cover, and for photos.

您可能还收取额外的布局，有助于实现，编辑，设计的书籍封面和照片。

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You may be charged 10% extra for this service.

你可能会因此项服务而被额外收取10%的费用。

《柯林斯英汉双解大词典》

The rise in the police precept means that Band D council tax payers will be charged an extra 17 pence per week.

BBC: Council tax payers to pay more for North Wales Police

The city council said it will not be charged for the extra wardens but 3GS will receive a percentage of every fine issued by its staff.

BBC: Leeds City Council uses security staff as litter wardens

Instead of saying that the subscribers will be over-charged for extra use, the company is saying that the users will get a discount for controlled use.

FORBES: Time Warner Cable Tinkers With Pricing, Stock Should Slip To $66