英语翻译Are you carrying too much on your back at school?I'm sur

英语翻译
Are you carrying too much on your back at school?I'm sure lots of children of your age will,say“Yes”．Not only the students in China have this problem ,but children in the United States also have heavy school bags．
Doctors are starting to worry that younger and younger students are having back and neck problems as a result of schools bags being too heavy for them．
“It's hard for me to go upstairs with my bag because it's so heavy,”said Rick Hammond,an 11-year-old student in the US．
Rick is among students who have common school bags with two straps to carry them,but many other students choose rolling bags．
But even with rolling bags,getting up stairs and buses is still a problem for children．Many of them have hurt their backs and necks because of the heavy school bags．
But how much is too much?Doctors say students should carry no more than 10％ to 15％ of their own body weight．
Scott Bautch,a back doctor,said children under Grade 4 should stay with 10％．But it is also important that older children don't stay with over 15％,because their bodies are still growing．“Children are losing their balance and falling down with their school bags．”he said．
Parents and teachers are starting to tell children to only take home books they will be reading that night．Some teachers are using pieces of paper or thin workbooks for students to take home．One of the best answers is,as some children said,to have no homework at all!

Are you carrying too much on your back at school?I'm sure lots of children of your age will,say“Yes”．Not only the students in China have this problem ,but children in the United States also have heavy school bags．
在学校时,你是背着很多东西吗?我确信很多像你这样年龄的孩子会说“是”.不仅中国学生有这样得问题,美国的孩子也背着很重的书包.
Doctors are starting to worry that younger and younger students are having back and neck problems as a result of schools bags being too heavy for them．
医生们开始担心越来越小的学生有背部和颈部的问题,是由于书包太重造成的.
“It's hard for me to go upstairs with my bag because it's so heavy,”said Rick Hammond,an 11-year-old student in the US．
我现在上楼梯很吃力,因为书包太重了,一个美国的11岁学生rick hammond说.
Rick is among students who have common school bags with two straps to carry them,but many other students choose rolling bags．
Rick在众多学生背着很常见的双肩背带的书包,但是许多其他学生选择带滚轮的包.
But even with rolling bags,getting up stairs and buses is still a problem for children．Many of them have hurt their backs and necks because of the heavy school bags．
即使是用滚轮行李包,对孩子来说上楼和乘车也是问题,用于书包太重许多孩子伤到背部和颈部
But how much is too much?Doctors say students should carry no more than 10％ to 15％ of their own body weight．
但是多重是重呢?医生说学生不应该背超过他们自身体重10%-15%的重量
Scott Bautch,a back doctor,said children under Grade 4 should stay with 10％．But it is also important that older children don't stay with over 15％,because their bodies are still growing．“Children are losing their balance and falling down with their school bags．”he said．
Scott Bautch,是一个背部医生,说,4年级以下的孩子应该在10%.但是同样重要的是,大一些的孩子也不要超过15%,因为他们正在长身体.孩子由于书包太重而失去平衡跌倒.
Parents and teachers are starting to tell children to only take home books they will be reading that night．Some teachers are using pieces of paper or thin workbooks for students to take home．One of the best answers is,as some children said,to have no homework at all!
家长和老师开始告诉孩子们仅带书回家在晚上看.一些老师用纸张或者薄的作业本让学生带回家.其中一个最好的答案是,如一些学生所说,根本不留任何作业.