辨析下列词语的感情色彩，并进行归类。(6分)
任劳任怨 贼眉鼠眼 垂头丧气
赤胆忠心 丢盔弃甲 坚贞不屈
鞠躬尽瘁 阴谋诡计 百折不挠
自私自利 舍己为人 狼狈不堪
褒义词：_____________________________________________________________________
____________________________________________________________________________
贬义词：_____________________________________________________________________
____________________________________________________________________________