### Chinese: 还有一部分品牌，为了推广自己的产品，不择手段，跟医院的医生挂钩，由他们协助产品的推广，从一听里面抽成30元到80元不等的利润。
### English: There are also some brands, in order to promote their products, by any means, linked to the hospital's doctors, by which they assist in the promotion of products, from the first listening to the profit of 30 to 80 yuan.
### Errors: There is a major error of incorrect translation has stylistic problems at "by any means". There is a major error of incorrect translation includes information not present in the correct translation at "linked to the hospital's doctors". There is a major error of incorrect translation is missing content from the correct translation at "by which they assist in the promotion of products". There is a major error of incorrect translation does not accurately represent the correct translation at "from the first listening". There is a major error of incorrect translation includes information not present in the correct translation at "the profit of 30 to 80 yuan".

### Improved English: There are also some brands that, in order to promote their products, cooperate with doctors in the hospital by all means, and ask them to assist in the promotion of products, drawing profits ranging from 30 yuan to 80 yuan from one can.