1.commission n. 委任, 委托, 代办(权), 代理(权), 犯(罪), 佣金；vt. 委任, 任命, 委托, 委托制作, 使服役 
解析：sells boats on commission 委托售船 
out of commission 退出现役；（不能使用）待修理 
community n. 公社, 团体, 社会, (zz)共同体, 共有, 一致, 共同体, (生物)群落 
解析：community welfare department 【美】社会福利部 
the Chinese community( 纽约的)华侨（界） 
the community of scholars 学术界 
community of goods 财产的公有 
community of interest(s) 利害的一致 

　2.complex adj. 复杂的, 合成的, 综合的 n.联合体 
解析：【同】complex, complicated, intricate, involved  
【辨析】complex 暗示相关部分的关系； 
The composer transformed a simple folk tune into a complex set of variations.  
这位作曲家把一首简单的民歌小调改编成一首复杂的变奏曲。 
To one could soar into a more intricate labyrinth of refined phraseology. 
“没有人能够攀进复杂的专业术语的优雅迷宫”（安东尼;初蒲）。 
complicated 强调各部分之间的细微关系； 
Middle Eastern politics is so complicated that even experts cannot agree on a cohesive policy.  
中东zz如此复杂以致于甚至专家们也难以制定出统一的策。 
intricate 着重于各部分交织在一起很难区分或分析：如克里特岛的迷宫。 
involved 强调若是把各部分混在一起将是难以区分的：想象漩涡的形状。 
The plot of the play has been criticized as being too involved.  
这个剧本的情节因过于混乱而遭到了批评。 

　3.computer n. 计算机, 电脑 
解析：【辨析】计算器是 calculator  
computer-based adj. 利用［借助］计算机的 
computerman n. 计算机工作人员；计算机专家 
computer-oriented adj. 研制计算机的 
computer-polled adj. 计算机登记的；计算机选择的 

　4.conclusion n. 结束, 缔结, 结论 
解析：in conclusion 最后，总之 
bring a matter to a speedy conclusion 使事情迅速结束 
the conclusion of a peace treaty 缔结和约 
conclusion of business 成交 
a foregone conclusion 早已确定的事，必然的结果，毫无疑问的事 
arrive at(come to, draw, reach) a conclusion 得出结论，告一段落 
at the conclusion of 当... 完结时 
bring to a conclusion 使结束；谈定（买卖等） 
come to the conclusion that... 所得结论是…， 断定 
draw the conclusion 得出结论，推断 
leap (jump) to a conclusion 冒然断定，过早下结论 
try conclusions with 和... 决最后胜负，争（最后）优劣；试验 

　5.conduct n. 行为, 操行 v.引导, 管理, 为人, 传导 
解析：a theory of conduct 品行论 
a bad conduct 恶劣行为 
infamous conduct 违反职业道德的行为(特指医生)  
safe conduct( 战时)通行证 
under the conduct of 在... 指导［管理］下 
His conduct of the business was very successful. 他的事业进展得相当顺利。