If the batteries you used cannot be recharged, how long do they last? How many times do you need to replace each month?
如果你使用的电池不能再次充电，通常新的电池可用多久？每月约要更换多少次？
If the batteries you used cannot be recharged, how long do they last? How many times do you need to replace each month?
如果你使用的电池不能再次充电，通常新的电池可用多久？每月约要更换多少次？
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