l含有一个蓄电池组装置储存太阳能和在白天生成以备夜晚使用的燃料电池的电力。
Include a battery storage unit to store the solar and fuel cell power generated during the day for use at night.
我们在不同的夜晚使用不同的语言。
既然因为我们已经有了睡眠的进化压力，进化理论说明，大脑就进化到明智使用睡眠时间来处理前一天获得的信息：白天获取，夜晚处理。
And because we already had evolutionary pressure to sleep, the theory goes, the brain evolved to use that time wisely by processing information from the previous day: acquire by day; process by night.
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