(1) 实践 (performance; action as contrast with theory) [U]： put a plan/a theory into～将一计划/理论付诸实践;Your idea seems good but will it work in～? 你的想法似乎不错，但能付诸实践吗?In theory the plan should be successful， but in～there are a lot of difficulties. 从理论上讲这个计划应该是成功的，但实际上还有许多困难。The new method did not go into～until last year. 新方法直到去年才付诸实践。〖同〗operation，action，application;

(2) 1)练习(regular activity done to improve one's skill) [U]： an hour's～every day 每天一小时的练习;an evening～for the tennis team 网球队的晚间训练;music/piano～音乐/弹钢琴练习;(playing the piano) require a lot of～(弹好钢琴)需要大量练习;With～he could speak English fluently. 经过大量练习，他就能流利地讲英语了。You'll need some extra～with English conversation. 你的英语会话还需要做一些额外的练习。It takes years of～to acquire the skill of an expert. 要获得专家的技巧需要多年的实践。P～makes perfect. (prov) 熟能生巧。a～game/lesson 练习赛/课;〖同〗training，drill，exercise; 2)练习(训练) (period of time spent doing this) [C]： The players will meet for a～in the morning. 运动员们早晨集合做一次训练。We have two choir～s a week. 我们合唱队每个礼拜练习两次。〖同〗training，drill，exercise;

(3) 1)惯例，习惯做法 (way of doing sth that is common or habitual) [U]： follow one's usual～to do sth 按自己的惯常做法做某事;It is the～in English law to consider a person as not guilty until he has been proved guilty. 英国法律习惯上认为，一个人在被证明有罪前是无罪的。2)习惯(俗)，常例 (sth done regularly; habit or custom) [C]： the～of closing shops on Sundays 商店星期日不营业的常例;I had tea after dinner， as is my usual～. 我饭后喝茶，这是我的习惯。the～of going to bed late 晚睡的习惯;It is my～always to rise early. 每天早起是我的习惯。〖同〗custom，habit，rule，way;

(4) 1)医生，律师等的)业务(工作) (doctor's or lawyer's business) [U]： My lawyer has a very good～. 我的律师生意很好。be in～行医;retire from～不再行医;2)(医生，律师等的)业务(开业地点) ((place of) business of a doctor or lawyer) [C]： a doctor with a large～求诊病人很多的医生;a medical/legal～医生/律师的业务;a group～医生联合诊所;Where is his～? 他在哪里开业?buy (into) a very profitable～买下一个非常有利可图的事务所;sell one's～转让生意(如把求诊的病人转给另一个医生);

(5) 1)(尤指医生或律师)行医，提供法律方面的服务 ((esp of a doctor or lawyer) pursuit of a profession or occupation) [U]： the～of law/medicine 做律师/医生;2)宗教的信仰 (exercising of one's religion) [U]： the～of one's religion 信仰宗教;

in/out of practice不荒疏/荒疏： A pianist gets his fingers in～by playing scales. 钢琴家通过练习音阶使自己的手指灵活自如。I used to play tennis well but now I'm out of～. 以前我的网球打得不错，但现在荒疏了。

→′practical adj;实际的，实用的;practically adv 实际地，几乎;

【辨异】practice与custom和habit的区别见CUSTOM。practice与drill²和exercise的区别见DRILL²。