Most of my learners in Poland have difficulty pronouncing
'mountain'
'were'
'won't - want'
'stomach'
and of course 'They think that this Thursday is the 30th' :)
Many of my ESL students have difficulty with the pronunciation of the following words: bird/bear/beard/beer/Bayer.
<a href="http://melaminefree.antserve.com/Chinese%20Accent.mp3">http://melaminefree.antserve.com/Chinese%20Accent.mp3</a>
Could you check it? These are all difficult for Chinese.