the point is that + http://www.talkenglish.com/lessondetails.aspx?ALID=2072

asked /?skt/

asks /?sks/

mitten

glottal can be used for mitten  button

　　　　　　　　　　　　hawa‘ii

　　　　　　　　　　　　hitt‘ing    gett‘ing

　　　　　　　　　　　　something = sump‘n

opens /‘?up?nz/

close 美/kloz/

if you practice too much it‘s sore

we usually with a d sound

nothing = nut‘n

 if you have a british friend, they can ask .. and they can give you an intresting lesson

that is a shane‘s explanation 

does that help you

I hope so 希望如此

glottal stop coach shane 笔记