lack book ph. 1. 黑名册;可疑人物册 black dog 是口语,有“沮丧”“情绪低落”,“意志消沉”之意. eg:He got the black dog on his back from overwork. 他因为过度疲劳,而感到沮丧. black sheep 1. 败类,害群之马 They say I'm the black sheep of the family because I decided to be an actor. 他们说我是家里的败类,因为我决定去当个演员.
