如果出售价款不敷抵付所欠数额，包括已发生的费用，承运人有权自货方收回差额。

Should the proceeds of sale fail to cover the amount due, including expenses incurred, the Carrier shall be entitled to recover the balance from the Merchant.

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批评者认为时代已发生变化，生产者有能力缴纳更多的费用。

Critics argue that times have changed and that producers can now afford to pay more.

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是对已发生但尚未支付的费用的预计。

It is about an amount incurred as a charge but not paid.

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