上海大徐
How long is the guarantee period (time) ?if there would be any problems how many days does it take to exchange it for a new one?上面的也写得对，但是对我来说 warranty 应该是不对的。更合适单词是 guarantee.bo v redu?
微笑面对一
保修时间是多少? 多少天内假如有问题可以拿来换新的吗？How long is the warranty on it?Could it be changed for a new one if it should have any problem?◆ warranty ---保修单；保修期（包括保修期和其它保证条件）
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