/treɪd; tred/
n
1 (a) [U] ~ (with sb/sth) exchange of goods or services for money or other goods; buying and selling 交易; 贸易; 商业; 买卖
*Since joining the Common Market, Britain's trade with Europe has greatly increased. 英国自从加入共同市场以来, 与欧洲的贸易大增.
* Trade is always good (ie Many goods are sold) over the Christmas period. 圣诞节期间生意一向很好.
* [attrib 作定语] a trade agreement 贸易协定.
(b) [C] ~ (in sth) business of a particular kind （某种）行业, 生意
*be in the `cotton, `furniture, `book trade, ie sell or make cotton, furniture, etc 以棉花、家具、书籍生意为业
* The country earns most of its income from the tourist trade. 这个国家的大部分收入来自旅游业.
* The new shop has been doing a brisk trade in cut-price clothes. 那新商店做减价服装生意一直很兴隆.
2 (a) [U, C] way of making a living, esp a job that involves making sth; occupation 谋生之道（尤指以制造某物为业）; 手艺; 职业
*be a butcher, carpenter, tailor, etc by trade 做肉商、木匠、裁缝等
* Basket-weaving is a dying (ie declining) trade. 编篮子这一行已逐渐衰落.
* The college offers courses in a variety of trades. 该学院开设多种职业课程.(b) the trade [Gp] people or firm engaged in a particularbusiness （做某种生意的）同行的人或商行
*We sell cars to the trade, not to the general public. 我们向经销商出售汽车, 不卖给一般人.
* offer discounts to the trade 对同行的人给予优惠. =>Usage 见所附用法.
3 (idm 习语) do a roaring trade => roaring (roar). a jack of all trades => jack1. ply one's trade => ply2. the tricks of the trade => trick.

NOTE ON USAGE 用法
*
1 Employment is formal and official. *employment是庄重的公文用词. It indicates the state of having paid work 这个词指有可获报酬的工作
*The national employment figures are published every month. 全国就业人数按月公布.
* Are you in gainful employment? ie Do you have a paid job? 你有有报酬的工作吗?
* Employment agencies help people to find work. 职业介绍所可帮助人寻找工作.
2 Occupation and job indicate a particular type of paid work. *occupation和job指有报酬的某种工作. Occupation is more formal and is used additionallyof work which may not provide a regular income *occupation一词较文, 还可指不一定有固定收入的工作
*`What's his job?' `He's a lorry driver, teacher, etc.' ｀他做什么工作?＇｀他是卡车司机、教师等.＇
* Occupation
*Artist, eg when filling in a form 职业
*画家（如填表格的字样）
* Do you get any job satisfaction? 你能从工作中得到乐趣吗?
3 A profession is an occupation which requires higher education and specific training. *profession指需要受过较高深教育和专门训练才能从事的职业. A trade requires training and skill with the hands *trade指需要受过训练有手艺的职业
*She's alawyer by profession. 她的职业是律师.
* He's a carpenterby trade. 他的职业是木匠.

/treɪd; tred/
v
1 [I, Ipr] ~ (in sth) (with sb) engage in trade; buy and sell 做生意; 做买卖
*The firm is trading (ie doing business) at a profit/loss. 这个公司做买卖赚钱[赔钱].
* a company which has ceased trading, ie gone out of business 已停业的公司
* Britain's trading partners in Europe 英国在欧洲的贸易伙伴
* a firm which trades in arms, textiles, grain 经营军火、纺织品、谷物的公司
* ships trading between London and the Far East 往来于伦敦和远东进行贸易的商船
* an increase in the number of firms trading with Japan 同日本贸易的公司数目增加.
2 [Ipr] ~ at sth (US) buy goods at (a particular shop) 在（某商店）买东西
*Which store do you trade at? 你常在哪个商店买东西?
3 [Tn.pr, Dn.n] ~ (sb) sth for sth exchange sth for sth else; barter sth for sth 用一物交换另一物; 以物易物
*She traded her roller-skates for Billy's portable radio. 她拿旱冰鞋换了比利的手提收音机.
* I'll trade you my stamp collection for your model boat. 我想用我搜集的邮票换你的模型船.
* I wouldn't trade my job for anything, ie because I enjoy it so much. 我这个工作给我什么都不换.
4 (phr v) trade sth in (for sth) give (a used article) to a seller as part of the payment for a new article 用（旧物）贴换新物
*He traded in his car for a new model. 他把旧汽车折价添钱买了辆新型号的. trade sth off (against sth) give sth up (in exchange for sth else) as a compromise 放弃某物作为让步（以换取他物）
*The company is prepared to trade off its up-market image against a stronger appeal to teenage buyers. 该公司拟改变只售高档商品的形像, 以吸引青少年顾客. trade on sth (esp derog 尤作贬义) make use of sth for one's own advantage 利用某事谋取私利
*You shouldn't trade on her sympathy. 你不应该利用她的同情心.
* He trades on his father's reputation. 他用他父亲的名誉牟利.