People will behave foolishly, rudely, ungratefully.

人们会表现得愚蠢、粗鲁、忘恩负。

She was too tired, sometimes, even to smile, John grew dyspeptic after a course of dainty dishes and ungratefully demanded plain fare.

她太疲劳了，有时甚至笑也笑不出。吃了精美菜肴，约翰渐渐得了消化不良症，因不知感激，反而提出要吃普通伙食。

" I don't think secrets agree with me, I feel rumpled up in my mind since you told me that, " said Jo rather ungratefully.

“不认为秘密适合， 自从你告诉那件事后， 子里乱糟糟， ” 乔有点忘恩负地说。

'We use it as a living-room and there is a fire there'; and Grant caught himself wondering ungratefully whether it was his own comfort that Walter was considering or his guest's.

“们把它当作起居室， 那里生着火” ； 格兰特发现自己忘恩负地想知道沃尔特考虑是他自己安慰还是他客人安慰。