### Chinese: 不用功的学生，可能考前集中突击就能及格，如若再想其他办法，有可能达到事半功倍的效果。
### English: Students who do not work hardCOS may pass the test. If they think of other ways, they may achieve twice the result with half the effort.
### Errors: There is a major error of incorrect translation is missing content from the correct translation at "COS". There is a major error of incorrect translation has stylistic problems at "Students who do not work hardCOS". There is a major error of incorrect translation includes information not present in the correct translation at "achieve twice the result".

### Improved English: Students who do not study hard can pass the exam after cramming before the exam; if they think of other ways, they may half the work with double results.