### Chinese: 根据酸度的不同可分为三个级别：
### English: It can be divided into three grades according to the acidity.
### Errors: There is a major error of incorrect translation has stylistic problems at "It can be divided into". There is a minor error of incorrect translation is missing content from the correct translation at "acidity instead of acidity levels".

### Improved English: There are three levels according to acidity: