n.保單；根據(jù)；保修期
It is foolish to buy a car without a warranty . 購買沒有保單的汽車是愚蠢的.
Yes, I have a one-year warranty. 是的，我有一年的保修單。
What warranty have you for doing this? 你這樣做有什么根據(jù)?
This product comes with one year warranty. 這產(chǎn)品有一年的保固期。
