3.6.6词根count（数，计算）【p55】
(1) discount ['diskaunt] n. 折扣，v.打折扣【count [kaʊnt] v. 计算，数，计算在内；“不计算在内的”】
(2) account [ə'kaunt] n. 账目，报表；理由 v.说明；认为，考虑
(3) counter ['kauntə] n. 柜台，结账处
(4) accountant [ə'kauntənt] n.会计
(5) countdown ['kauntˏdaun] n.倒数计秒 [四级]
(6) reckon ['rekən] v. 计算， 算出； 认为【reckon=count】 [四级]
【经典例句】
(7) We give (a) % discount for cash. 现金付款, 我们予以九折优待.
(8) See how many plates we have, but don't count in the cracked ones.看看我们有多少个盘子，但不要算有裂纹的.
(9) The accounts show a profit of 9000. 帐上显示盈利9000英镑.
(10) We have a jewelry counter, clothes counter, and toys and handicrafts counter.我们有珠宝首饰柜台、服装柜台、还有玩具和工艺品柜台.
(11) Bill asked his accountant to try to get around the tax laws.比尔要他的会计试着逃税.
(12) Competitors will be given a 3-2-1- GO countdown to begin their round.参赛者听到”3-2-1-go”的口令后方可开始.
(13) I reckon (that) he is too old for the job. 我认为他年龄太大, 不适于做这工作.