fruitlessly
US /ˈfruːt.ləs.li/
UK /ˈfruːt.ləs.li/
副詞
無駄に
in a way that is fruitless (= unsuccessful or producing nothing of value):
例:
•
Five days of talks ended fruitlessly.
無駄に
in a way that is fruitless (= unsuccessful or producing nothing of value):