如果你在问题15回答“不会”，安全问题是否主要原因？如不是，请说明原因。
If you answered "no" to Question 15, is the safety problem be the main reason? If not, please specify.
请说明具体原因及提出假设建议。
Use specific reasons and examples to support your recommendation.
请说明具体原因及提出假设建议。
Use specific reasons and examples to support your recommendation.
应用推荐