1.不感恩的,忘恩负义的
2.徒劳的,白费气力的
3.讨厌的,不愉快的
1.not grateful to someone who has helped you or been kind to you
1.Nor was Martin ungrateful, knowing as he did the lives of the poor, and that if ever in the world there was charity, this was it.
马丁也并非不感谢，他明白穷人的苦，也知道世界上若有慈悲心肠，这就是慈悲心肠。
2.It struck me as I spoke that this was rather ungrateful of me, after having received such a fine present.
当我说这句话的时候，我突然觉得在接受这么精致的礼物之后说这种话，真是有点忘恩负义。
3.I immediately resolved to quit those ungrateful shades and to return to this good world to see again the sun and you.
我立即决定离开那些忘恩负义的幽灵，重返这美好的世界，再看着阳光，再看看你。
4.You horrid, proud, ungrateful animal, when I'm sorry for you, and trying to help you!
你这个可恶的、骄傲的、忘恩负义的东西！我还为你难过，想帮你一把哩！
5.Talk about ungrateful. Instead of vilifying James, Clevelanders ought to be thanking him for the great ride.
说到忘恩负义，克利夫兰人不应痛骂詹姆斯，反而应该为其了不起的表现而感谢他。
6.She was thinking of Vesta, of her ungrateful attitude toward Lester, of his final decision never to marry her.
她一边做事，一边想到味丝搭，想到自己对不起雷斯脱，想到他已经决定不跟她结婚。
7.as he touched the strange land he turned suddenly and looked back . " farewell , ungrateful country ! " he cried.
他刚一触到异国的土地，就蓦地转过身来向后望去。“永别了，薄情寡恩的国家！”他大声说道。
8.To tell the truth, trying to define current trends in such rapidly developing sphere as web design may be rather ungrateful experience.
说实话，在如此飞速发展的网站设计领域里尝试定义流行趋势也许是件非常吃力不讨好的事情。
9.He seems so ungrateful for anything we did that we have given up trying to help him.
他对于我们为他做的任何一件事是如此忘恩负义，以致我们不打算帮助他了。
10."I should be ungrateful if I were not, seeing what I gained through one of them, " I answered.
想想我从每个案子中得到的收获，如果我不去，就太忘恩负义了。