动词短语
中文翻译：把床放下来
同义词：
['close', 'shut', 'lower', 'turn off']
例句：
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1.I turned down the heat to save some money on electricity bills.
我调低了暖气，以节省电费。
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2. She turned down the music to listen to the TV program.
她关小了音乐，以便听电视节目。
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3.The car's engine turned down as it reached its lowest speed.
当汽车速度减到最低时，发动机自动关闭。