/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: KRYZL https://cdn.slidesharecdn.com/profile-photo-KRYZL-48x48.jpg?cb=1522927540 I've been teaching for more than 18 yrs, and i love it because as I've knew that teaching is a continuous process so that why i share my skill to the learners . end_alipio20092000@yahoo.com