/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: KEviN0624 https://cdn.slidesharecdn.com/profile-photo-KEviN0624-48x48.jpg?cb=1626878718 I don't care to have infinite wrong steps are done to achieve my goal, but I only want the one solution to approach desirable success.