现在却像是没电的电池 Now's a dead battery
你甚至可以更换出有电的电池，装入没电的电池，用手机太阳能给没电的电池充电。
You could even swap out the batteries while charging others with the phone.
每次看手表的时候，她都会想是不是电池没电了。
Every time she consulted her watch, she wondered if the batteries were wearing out.
我把车开出来帮他做借电启动，因为他的电池没电了。
I drove out to give him a jumpstart because his battery was dead.
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