当生活很艰难，你想要放弃的时候，请记住，生活充满了起起落落，如果没有低谷，那站在高处也失去了意义。When life gets hard and you want to give up, remember that life is full of ups and downs, and without the downs, the ups would mean nothing.我想你或许想要读一下信封里的内容。I thought you ...
His friends were shocked by his ingratitude to his parents.他对父母不孝,令他的朋友们大为吃惊.The person always returns ingratitude for kindness.这个家伙常常恩将仇报.Ingratitude is a despicable vice.忘恩负义是可鄙的不道德行为....