手機(jī)的保修期有多長(zhǎng)

今天的這段對(duì)話，發(fā)生在手機(jī)商城，
手機(jī)的保修期有多長(zhǎng)
來(lái)聽(tīng)今天的講解:
 
A：It's the latest and quite popular among young people.
這是最新的產(chǎn)品，很受年輕人的歡迎。
 
B：Yes, I know and I like it very much. I will take it.
是的，我知道，我非常喜歡它，我買下了。
 
A：Sure. Here is your receipt.
好的，給您發(fā)票。
 
B：How long is this cell phone guaranteed?
這個(gè)手機(jī)的保修期是多長(zhǎng)時(shí)間？
 
A：You can refund it in 7 days and exchange it in one year.
七天內(nèi)保退，一年內(nèi)保換。