By investing in efficient plant it could generate lots of valuable carbon credits to sell to wealthier, more wasteful nations.

投资高效工厂能节余很多宝贵的碳信用额度，可以用来卖给那些更富有、更浪费的国家。

《柯林斯英汉双解大词典》

Producers can sell those tax credits or the promise of those tax credits to investors in each state to help cover the project's budget.

制片人可以将这些税收抵免或者税收抵免承诺作为利好告知各州的投资者，以帮助支付其电影制作费用。

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Some 4, 000 merchants in 150 countries sell “credits” to users, who then can spend them online: sending messages to friends, playing games, or sending virtual gifts.

150个国家的4000家商户出售“信用“给用户，然后用户们即可在网上消费这些“信用“：发信息给朋友，玩游戏或者送虚拟的礼物给朋友。

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They dole out payment to the filmmakers as shooting progresses and then sell credits to the public after it is over.

FORBES: Magazine Article

By letting them sell credits to companies in rich countries which, in turn, can use them to offset their own pollution.

FORBES: When Pigs Fly

Planktos had announced that it would dump tons of iron dust in the ocean to spark the growth of phytoplankton, and then sell credits based on how much carbon the phytoplankton consumed.

NEWYORKER: Neptune��s Navy