⑷意见卡 女士们，先生们： 欢迎你乘坐中国XX航空公司航班，为了帮助我们不断提高服务质量，敬请留下宝贵意见，谢谢你的关心和支持！ Good morning (afternon,evening), Ladies and Gentlemen: Welcome aboard XX Airlines, comments form you will be highly valued in order to improve our service, thanks for your concern and support