| 释义 | 
		mirthless美 ['mɜrθləs]  英 ['mɜː(r)θləs]  adj. cheerless,dour,gloomy,grim,dismal 1.  | 不快乐的;忧郁的showing no real enjoyment or amusement  |  
  | a mirthless laugh/smile 苦笑  |  
 adj.  | 1. not feeling or expressing amusement, good humor, or gladness 2. a mirthless smile or laugh expresses feelings such as anger or sadness  |  
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