动词短语
中文翻译：缓慢点燃
同义词：
['slow-burn', 'ignite slowly']
例句：
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1.The engine needs to be started slowly to avoid overheating.
为了避免过热，发动机需要慢慢启动。
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2.The firefighters were slow-burning the flames with water.
消防员用水慢慢地扑灭火焰。
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3. The oil in the engine is slow-burning, so it takes time to start.
引擎里的油是慢燃的，所以需要时间才能启动。