You don't have to pay extra for breakfast.

你不必付额外的早餐钱。

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Shippers must pay extra insurance premiums, even if they ply a course far from Somalia's waters.

即便航行在远离索马里海域的航道上，船公司必须支付额外的保费。

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He explained that he would be calling buyers and sellers at random to find out whether they had been asked to pay any extra bribes or commissions.

他解释说，他将随机致电买家和卖家，了解他们是否被要求支付任何额外的贿赂或佣金。

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For all the discomforts, the long hours, and no days off, there is an incentive - extra pay.

BBC: HMS Triumph: Life on board a Royal Navy submarine

Bluetooth may be cheaper, but it faces many of the same chicken-and-egg problems: why pay extra for a Bluetooth-enabled printer if you do not have a Bluetooth-enabled laptop, and vice versa?

ECONOMIST: REPORT: WIRELESS COMMUNICATIONS

If Europeans prefer time on the ski-slopes to extra pay, that seems fair enough.

ECONOMIST: Why is Europe growing so slowly?