| 单词 | diurnal | 
| 释义 | diurnal  (daɪɜːʳnəl  )       adjective [usually ADJECTIVE noun]  Diurnal means happening or active during the daytime.  [formal]  Kangaroos are diurnal animals.   Synonyms:  daytime, active during the day, non-nocturnal      | 
	
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