chairman/chairewoman
chairman/ˈtʃɛəmən/n.［c］(pl.chairmen)主席；董事长；议长：a party chairman党的主席；a bank board chairman银行董事长chairewomann. [c] (pl. chairwomen)女主席，女董事长
chalk
chalk/tʃɔ:k/n.［u］粉笔：write with a piece of chalk on the blackboard用粉笔在黑板上写字；chalk line(田径)场上白线；a box of coloured chalks一盒彩色粉笔；to write with chalk用粉笔···
challenge
challenge/ˈtʃælindʒ/ I.n.［c］挑战；艰难的任务：a challenge to competition竞赛挑战；a letter of challenge挑战书；give a challenge提出挑战；accept/take a challenge应战；a challe···
chamber
chamber/ˈtʃeimbə/n.［c］1.房间；寝室；接待室；会议室；会所：an audience chamber接见室；a bridal chamber新房，洞房；a secret chamber密室2.议院：the lower(upper) chamber下（上）议···
champagne
champagne/ʃæmˈpein/n.［c］&［u］香槟酒：On special occasions we ususally drink champagne.在特定场合我们通常喝香槟酒。
champion
champion/ˈtʃæmpjən/n.［c］1.冠军，优胜者：a national(world) champion全国（世界）冠军；the champion in baseball棒球冠军2.捍卫者，拥护者：a champion for/of communism共产主义战士；···
chance
chance/tʃɑ:ns/ I.n.［c］&［u］1.机会（跟不定式或at或of引起的短语作定语）: She had the chance to go but she decided not to.她曾有机会去，但她决定不去了。He has long hoped for ···
chancellor
chancellor/ˈtʃɑ:nsələ/n.［c］长官，大臣：The Chancellor of the Exchequer deals with taxes.（英国）财政大臣负责税务。
change/changeable
change/tʃeindʒ/ I.vt.&vi.1.改换；更换；交换；换车；兑换：Why does it take you so long to change your clothes?你换衣服怎么要那么久? Change places with me, please; I’d like to···
