/ http://www.slideshare.net/images/logo.gif / 狠狠撸Share feed for 狠狠撸shows by User: YoungNg https://cdn.slidesharecdn.com/profile-photo-YoungNg-48x48.jpg?cb=1523112562 有自信的人不一定会成功， 没有自信的人一定不能成功。 Living must have confidence.