Examples

fringe costs

额外的费用

The parcel will be sent by airmail for overseas delivery with no additional fees.

寄往海外的包裹将用航空邮递但不收取额外费用。

If you want to check additional baggage, you'll have to pay an excess baggage fee.

如果你要寄存其他行李，就要支付额外的费用。

there are no hidden extras

没有隐含的额外费用

there are no hidden charges

没有变相的额外费用

You would be responsible for any additional cost involved.

你应当负责承担发生的一切额外费用。

Bath towels can be supplied for an extra charge.

浴巾的提供会收取额外费用。