ma·tu·ti·nal /ˌmæʧʊˈtaɪnḷ; məˈtutnəl, ˈtjut, ˈtutṇəl, ˈtju-/
(a.)早晨的,黎明的,早的
Mat·u·ti·nal a. Of or pertaining to the morning; early.
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matutinal
adj : pertaining to or occurring in the morning; "took his
matutinal walk"