Product upgrade
A: So, you would like to know how much it would cost to upgrade your current system, is that correct?
B: Yeah, that’s right. I’d also like to know how much extra equipment I’d have to purchase.
A: All right, ma’am. Let me do some calculations. Could you wait a moment, please?
B: Sure. No problem.

产品升级
A：这么说，您是要知道升级您目前的系统得花多少钱，是这样吗？
B：是这样的。同时我还想知道我还得购置多少附件设备。
A：好的，夫人。让我算一算。您能稍等片刻吗？
B：好，没问题。