uselessly
US /ˈjuːs.ləs.li/
UK /ˈjuːs.ləs.li/
副詞
無駄に
in a way that is of no use, or that is not working or achieving what is needed:
例:
•
His injured arm hung uselessly at his side.
無駄に
in a way that is of no use, or that is not working or achieving what is needed: