练 练的英文 英语翻译 drill; experienced; practise; skilled; train; white silk 拓展翻译 老练tact老练的adept; diplomatic; experienced; expert; gray; old; old-time; seasoned; tactful; veteran练兵training练操drill练功practise one's skill练肌器ergostat练力浴池Hubbard tank练声vocalize练尾缺母丝虫Agamofilaria streptocerca练习practice; exercise; praxis; rehearsal; trainingpractice练习辩论moot练习辩论的要点moot point练习律law of exercise练习曲etude练音体操vocal gymnastics聋哑教练法demutization