And , this one here , some of you might recognize , is dichlorodifluoromethane . It 's also known as a CFC .
而且在这些当中有些你或许认识，是二氯二氟化碳，它也是众所周知的氟利昂。
dichlorodifluoromethanedichlorodifluoromethanedichlorodifluoromethane