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diurnal

英 [daɪ'ɜːn(ə)l] 美[daɪ'ɝnl]
  • adj. 白天的;每日的,一日间的
  • n. 日记账;日报,日刊

英英释意


1. belonging to or active during the day;
"diurnal animals are active during the day"
"diurnal flowers are open during the day and closed at night"
2. having a daily cycle or occurring every day;
"diurnal rhythms"
"diurnal rotation of the heavens"
"the diurnal slumber of bats"