### Chinese: 无缘无故有可能迟到半小时
### English: You might be late by half an hour for no apparent reason
### Errors: There is a major error of incorrect translation is missing content from the correct translation at "You might be late". There is a minor error of incorrect translation has stylistic problems at "by half an hour".

### Improved English: They will probably be late for half an hour for no reason at all.