The [tr] and [ch] Sound
true chew; trick chick; treck check; trace chase; train chain
fast version: http://space.wenxuecity.com/media/1301597770.mp3
slow version: http://space.wenxuecity.com/media/1301597795.mp3
fast version: http://space.wenxuecity.com/media/1301597770.mp3
slow version: http://space.wenxuecity.com/media/1301597795.mp3