我想可能是这样吧:the first old, the second elder, the third elder, the fourth elder,the youngest / the fifth elder.old big,old two,old three,old four,old five!old big old two old three old four old five为了好好招待客人,老大去买酒;老二去劈柴;老三剁着肉馅;老四去烧火,老五去擀面,一家人忙得不亦乐乎。the oldest one the second oldest the third oldest the fourth oldest the fifth oldestNumber One ,two, three, four, fiveNo.1, 2, 3,4,5