名词
中文翻译：Unknown
同义词：
['transmitter', 'converter', 'transformer']
例句：
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1. The shifter is responsible for moving the heavy objects around.
这个转换器负责将重物移动。
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2. The scientist used a shifter to convert light into electricity.
科学家使用一个转换器将光转换为电能。
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3. The shifter was designed to make the process more efficient.
这个转换器被设计来使过程更加高效。