### Chinese: 现在我跟大家先说一下听装贵的原因，贵在哪里？
### English: Now let me tell you about the reason why it is expensive to listen to, where is it expensive?
### Errors: There is a major error of incorrect translation has stylistic problems at "...to listen to,". There is a major error of incorrect translation includes information not present in the correct translation at "...where is it expensive?". There is a major error of problems with grammar, other than orthography at "Now let me tell you about the reason why it is expensive to listen to,".

### Improved English: Now I will introduce why the canned ones are expensive.