劳累exhausted for one's overwork; trouble someone
参赛go in for/enter a competition
定量determine the amounts/quantities of the components of a substance; fixed amount/quantity
布告proclamation; announce by posting notice
提早be earlier than planned or expected
管教subject someone to discipline; reeducation through labor
评选choose through public appraisal
迟到arrive later than the arranged time
校务administrative affairs of a school or college