您好。我尽力帮助您。 the first answer that my friend was telling you is a translation of the context, and that's why you couldn't understand well what meaning is. Now, I think you have checked the translation, and for me, I'll explain the meaning to you. Please note :) ربنا آتنا في الدنيا حسنة وفي الآخرة حسنة وقنا عذاب النار. is " doaa" [an arabic word], you have to know some arabic words have no similar in the other languages, but we can only understand. doaa is arabic word, and it means : the sentences or the words which are said for allah. * the meaning: oh allah give us the charity " in sense of حسنة" and the help when we are in this life[world] and the charity and the help when we'll be in the other life. and save us from the torment of the fire. "doaa"是一个阿拉伯语词汇，在英语和其他语言中并没有相似的单词，它的意思是：代表涉及到allah“上帝”的词汇或者是句子，我们可以在任何想要使用它的时候使用，一些由先知说出的“doua”非常的特别. [thanks to my friend who was helping me to write the meaning well into chinese, check them] Regards.

O Our Lord! Give us in this world [that which is] good and in the Hereafter [that which is] good, and save us from the torment of the Fire