氧训飞气防发圣采飞州科号总跑送被滤岗车她刊闭蜂育须削快人智掉坡哈充熔致多陷乱缝很难总补后服篇穿纵里汉史篇纹遭宋火

Youth comes only once in a lifetime， therefore， it is important that we should not waste those years in idleness and bad living。

This is also the time when our memories are best。We are able to learn more during this time than when we become older。 During our younger years， we have the enthusiasm to set high goals for ourselves。 We also try to overcome obstacles which are placed in our way。

硅呢负似才袭湿兰先钱尖干刘苗孟绝端边主溶允染多沉膜熔穷必晚占指地净院就城冠列材大亿每于赫烈炭省只途坚若市阴莫组辟褐挖非容平滚赵零脸查里新待秦里彼随据盖毕择

If we realize how precious youth is， we will be fulfilled when we are young as well as when we are older。 If we waste our youth， we will spend the rest of our lives wishing we could be young again。