名词
中文翻译：电池
同义词：
['cell', 'battery', 'power pack', 'power supply']
例句：
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1. The car has a new battery, so it runs smoothly.
这辆车有新的电池，所以运行顺畅。
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2. The old phone needed a new battery to work properly.
旧手机需要更换新电池才能正常工作。
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3. The power supply is out, so we can't use the computer.
电源断了，所以我们不能用电脑了。