(1)练习，训练 (exercise repeatedly or regularly in order to improve one's skill) [I， I+prep(on)， T+n， T+n+prep(on)， T+ing]：～two hours every day 每天练习两小时;She hasn't been～ing enough. 她练习得不够。You must～more if you want to enter the competition. 如果你想参加比赛必须更多地训练。～drums/the piano/English 练习打鼓/弹钢琴/英语;～(a new piece) on the piano 在钢琴上练习(一支新曲子);～throwing the ball into the net/speaking French more/balancing on a rope 练习投篮/更多地说法语/在绳子上保持平衡;〖同〗drill，train;

(2)实行，养成习惯(do sth regularly or as one usu does) [T+n]：～economy/patience/self-control/democracy 节约/有耐心/自我约束/实行民主;～getting up early 养成早起的习惯;P～what one preaches. (prov) 身体力行(言行一致)。〖同〗perform，do;

(3)以(医生，律师)为业 (work in the profession of medicine， law， etc) [I， I+prep(as)， T+n]： He still～s. 他仍然在行医(或做律师)。～as a solicitor/lawyer/doctor 当律师/律师/医生;～medicine/law 行医/当律师;a～ing doctor 开业医师;He's only～d dentistry for a year. 他开业做牙医才一年。

(4)积极地做(do (sth) actively) [I， T+n]： He was a Catholic but didn't～(his religion). 他信奉天主教，但(对自己的信仰)却不身体力行。a～ing Christian 按时去教堂做礼拜的基督徒;

→′practised， AmE ′practiced adj 熟练(经验丰富)的;prac′titioner (亦作prac′tician) n 开(从)业者;行医者