商务英语词汇客服：客户投诉

[00:03.81]break down :故障
[00:05.74]claim :n.(保险)理赔；费用申请
[00:07.39]complaint :n.抱怨；不满
[00:09.21]criticism :n.批评
[00:11.12]defective :a.瑕疵的；有缺陷的
[00:12.92]feedback :n.意见反映
[00:14.93]improve :v.改进；改善
[00:16.76]invalid :a.无效的
[00:18.49]price list :价目表
[00:20.44]product quality :产品质量
[00:22.74]purchase :n.购买
[00:24.52]refund :n.退费
[00:26.24]replacement :n.更换
[00:28.15]warranty :n.保固