PHRASAL VERB 释放，放出，发出（气体、热量、气味等） If something gives off or gives out a gas, heat, or a smell, it produces it and sends it out into the air. 释放，放出，发出（气体、热量、气味等） [Also VERB n PREPOSITION]
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...natural gas, which gives off less carbon dioxide than coal. [VERB PREP. noun]
二氧化碳释放量低于煤炭的天然气
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Substances such as ammonia give out heat when they dissolve. [VERB PREP. noun (not pronoun)]
诸如氨气之类的物质在溶解时会释放出热量。
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