n.练习( practice的名词复数 )；实践；（医生或律师的）业务；惯例 双语释义：n.(名词)[U]练习,实习 regular or repeated performance or exercise in order to learn to do sth well[U]实践,实际 the actual doing of sth (rather than the idea of it)[C]业务 the business of a doctor or lawyer[U][C]惯例,常规 a repea