Recently I am very long to see ah, because I have been learning about threat defense knowledge, this knowledge can be said that I was rejected, but now I have the love. One of my friends know about this threat. Special many, he has recently been talking about this threat. Things, I had to this not what interests, but every time a friend say clearly and logically, and always said this threat. Everywhere is great, so I should learn some, I think friends said of the rational, so I let him teach me the knowledge, I think learn really not simple ah, but I think really is very embarrassed, I also very much like, I also hope that with the help of friends, I can learn more knowledge.