/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: thepeterchang https://cdn.slidesharecdn.com/profile-photo-thepeterchang-48x48.jpg?cb=1523472112 I firmly believe that there should be a class in primary school dedicated to teaching children to breathe with their mouths closed while engaged in non-physical activities. Another entire class in middle school will teach the value of deodorant use, as well exploring as the inverse relationship between armpit odor and deodorant application.