| 单词 | cap-and-trade |
| 释义 | cap-and-trade From Longman Dictionary of Contemporary Englishcap-and-tradeˌcap-and-ˈtrade noun [uncountable]a system in which companies are only allowed to produce a limited amount of substances that harm the environment. If they produce more than the amount allowed, they have to buy permission from other companies that produce less. |
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