ma·ni·a·cal·ly /məˈnaɪək(ə)lɪ/ 副詞
Ma·ni·a·cal a. Affected with, or characterized by, madness; maniac. -- Ma*ni*a*cal*ly, adv.
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maniacally
adv : in a maniacal manner or to a maniacal degree; "he was
maniacally obsessed with jealousy"