动词短语
中文翻译：自我充电
同义词：
['self-replenishing', 'self-renewing']
例句：
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1.The battery needs to be charged before it can be used.
电池需要充电才能使用。
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2. The solar panels are designed to self-charge during the day.
太阳能板设计成在白天自我充电。
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3. The car's engine is self-charging, so there's no need for a charger.
汽车的引擎是自我充电的，所以不需要充电器。