unsuccessfully
(ad.)失敗地
Un·suc·cess·ful a. Not successful; not producing the desired event; not fortunate; meeting with, or resulting in, failure; unlucky; unhappy. -- Un*suc*cess*ful*ly, adv. -- Un*suc*cess*ful*ness, n.
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unsuccessfully
adv : without success; "she tried unsuccessfully to persuade him
to buy a new car" [ant: successfully]