[解析]
W:Richard,do you know why anna didn't come to school these days?
M:Shea suffering depression.She's receiving professional help now.and She was advised to spend a few days at home.
W:I am so sorry to hear that. but I'm not surprised.It seemed to me that anna wasn't happy at all.I just didn't know it was so serious,
M:But I knew she was suffering depression. and I know she isn't alone.
W:What do you mean?
M:Depression is something millions of people across the world struggle with on a daily basis.According to the world health organization,350 million people around the world suffer from depression in america alone,
9%of the country battles the issue with3.4%suffering from a major case of depression.
W:That's really a common problem.I do hope people can find good ways to overcome depression.
M:Me too,oh my class will begin soon.Talk to you later.Bye .
W:Bye.