| 单词 | lackaday | 
| 释义 | Definition of lackaday in English:lackadayexclamationˈlakədeɪˈlakəˌdā archaic 
 OriginLate 17th century: shortening of alack-a-day. Definition of lackaday in US English:lackadayexclamationˈlakəˌdā archaic 
 OriginLate 17th century: shortening of alack-a-day.  | 
	
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