This book is really good, the boys certainly did not want his girlfriend looked at the book. But for girls, know how to protect yourself is the most important.
Feelings of the world want a balance, you a little more, a little less I always can not guarantee that two people always maintain a balance.
So good grasp point skills, but also do not get themselves stuck in a quagmire.
Reproduced in: https: //my.oschina.net/u/204616/blog/545452