There's a systems failure.

　　机器系统出毛病了。

　　There's a breakdown.

　　出毛病了。

　　I'm phoning to complain about the product.

　　我打电话投诉产品问题。

　　I'm sorry to hear that. What exactly is the problem?

　　很抱歉。出什么问题了？

　　It's broken./It doesn't work./It's faulty.

　　坏了。/不运行了。/出毛病了。

　　I think I can do better than that.

　　我想我能做得更好。

　　What's the problem?

　　什么问题？

　　The problem is the photocopier isn't working.

　　问题是复印机坏了。

　　What's wrong? What exactly is the problem?

　　怎么回事？哪里出毛病了？

　　There's some paper stuck in the machine.

　　复印机卡纸了。