classroom boycott 罢课 
climbout 经济复苏 
closing address 闭幕辞 
cloverleaf intersection 立交桥 
comfortably-off level 小康水平 
commuter 乘车上班族 
complains box 意见箱 
computernik 电脑迷 
condo(minium) 商品房 
condolence 慰问，吊唁