her pronunciation is not that great and her vocabulary is still limited, it is amazing to see her vivid face, which is so Western, and listen to her girlish voice, which is also quite Western. No wonder American like her so much while Chinese don't!
BTW, we have a 22 yrs old girl who just spent 4 month in Los Angeles and came back with PERFECT & CUTE small American girl's English, which is much better than Zhang's since she was a Chongqing Happy English Level-7 English Master b4 she went to USA.