英语翻译One day,an expert in time management was speaking to a g

英语翻译
One day,an expert in time management was speaking to a group of students and ,to drive home a point,used an illustration those students will never forget.　　Standing before the group of overachievers(成绩超过预料的学生）,he said,"Ok,time for a quiz."He pulled out out a one-gallon,wide -mouth jar and set it on the table in front of him.He also produced about a dozen fist-sized rorocks and carefully placed them,one at a time,into the jar.When no more rocks would fit inside,he asked,"Is this jar full?" 　　Everyone in the class yelled,"Yes"The expert reached under the table and pulled out a bucket of gravel.He dumped some gravel in and shook the jar,causing pieces of gravel to work themselves down into the spaces between the big rocks.He then asked again,"Is this jar full?" 　　"Probably not."one of them answered."Good."He replied.He reached under the table and brought out a bucket of sand.He started dumping the sand in the jar and it went into all of the spaces left between the rocks and the gravel.Onece more he asked the question,"Is this jar full?" 　　"No!"the class shouted."Good."He replied.He grabbed a pitcher of water and began to pour it in until the jar was filled to the brim.Then he looked at the class and asked,"What is the point of this illustration?"One eager student raised his hand and said,'"No matter how full your schedule is,if you try really hard you can always fit some more things in it!" 　　"_______,"the expert replied."The truth this illustrtion teaches us if you don't put the big rocks in first ,you'll never get them in at all.What are the "big rocks"in your life?Time with your loved ones,your education,your dreams,a worthy cause,or teaching others?Remember to put these big rocks in first or you'llnever get them in at all."