短文翻译：Are you carrying too much on your back at school? You’r

短文翻译：Are you carrying too much on your back at school? You’re not alone.
文章：
Are you carrying too much on your back at school? You’re not alone. Back experts in the United States are worried that young students are having back and neck problems as a result of carrying too much in their backpacks (schoolbags).
“It hurts my back when I run,” said Oberlin Reyes, a student in Virginia. “It’s hard to get up the stairs with my backpack, because it’s too heavy.”
Oberlin is among students whose backpacks were weighed for a week in a recent study.
They had regular backpacks with two straps (带子) to carry them, but a number of students with heavy loads had switched to rolling backpacks (which have wheels and can roll on the ground).
Shirley Park, whose backpack weighed 10 kilograms, said she changed to a rolling backpack because she was starting to have back pain.
How much is too much? Experts say students should carry no more than 10 to 15 percent of their own body weight.
A few students had one suggestion to lighten the load: less homework.
P.S. (附) Doctor’s suggestion:
① Lighten the load. Clean out binders (活页材料) and take home only the books you need that night.
② Wide straps are better. They send out the weight over your shoulders more evenly (均匀). And be sure to wear both straps rather than hanging the pack over one shoulder.
③ Pack smart. The heavier things should be packed closed to the back.
④ Bend both knees when you pick up the pack, and don’t just bend over at the waist (腰).

你带着过多的放在你的回学校了?你并不孤单.在美国回来专家担心,年轻的学生们正在上背部、颈部问题由于承载太多的在他们的背包(schoolbags).
“它会伤害到我的背部时,我跑着去,”,一个学生说Oberlin雷耶斯在弗吉尼亚.“很难找到与我的背包上楼梯,因为它太重了.”
Oberlin的学生是在一个星期背包都称在最近的一项研究.
他们定期举行背包和两个带(带子携带他们,但许多学生的重担不得不将与轧制背包(有轮子,可以在地上滚动).
雪莉公园,10公斤重的背包,说她改为一个滚动的背包,因为她开始背痛.
多少太多?专家们说,学生应该携带不超过10 ~ 15%的他们自己的体重.
一些学生有一个建议:少减轻负担的家庭作业.
附言.(附)医生建议:
①减轻负担.清理粘结剂(活页材料)和带回家,只有你要的书过夜.
②宽皮带更好.他们发出重量超过你的肩膀更均匀的(均匀).而且一定要两个背带挂包而不是一个肩膀.
③装聪明.较重的东西应该包装关闭吧.
④弯曲双膝,当你拿起包,不要只是弯腰在腰(腰).
还能凑活看