基本解釋adv.徒勞的同根派生 thanklessly相關詞英漢例句They seldom labour their wits on thankless task. 他們很少為吃力不討好的工作動腦筋。I did much for him but what I got was only his thankless complaints. 我為他做了那么多,但得到的只是他不知感恩的抱怨。Giving advice is usually a thankless act. 進忠告通常是一種不令人感激的行為。Nobody was keen to take on such a thankless task. 沒有人愿意承擔這種費力不討好的任務。SAVING the world is a thankless task. 拯救世界是一個費力不諂媚的義務。thanklessly更多例句