I didn't know I have /th/ issue. Probably when I paid attention to the intonation, the tongue was not in the right position.
Thanks again for your great suggestion to read an article over and over again.
Have a nice long weekend!
Thanks Checkingaround.
本帖于 2009-09-06 07:37:20 时间, 由版主 林贝卡 编辑