Under warranty
在保修期内
A:Oh! Is this recorder still under warranty?
B:It should be. I bought it only one month ago. Now it refuses to work these days.
A:It must be poor quality.
A:噢!这台录音机还在保修期内?
B:应该是。我一个月前刚买了它,可这些天它就不好使了。
A:一定是质量太差了。