When pain strikes, we attempt tp keep the back as immobile as possible, which makes the muscles tense up.
当疼痛来袭，我们试图尽可能保持背部不动，这会使得肌肉紧张。pain strike 疼痛来袭
as immobile as possible 尽可能不动
muscle tense up 肌肉紧张
If you are overweight, a diet will make all the difference.
make all the difference 起到作用；做出改变
Japan has a significant better record in terms of average mathematical attainment than England and Wales.
在数学平均成绩方面，日本学生的分数明显高于英格兰和威尔士学生的分数。in terms of 按照（依据，用...来）
attainment 达到；获得 attainments 成就；才能；学识
Grand Freeman, a biologist who specializes in identifying insects, has come to talk us about his current research work.
格兰特弗里曼，一个昆虫识别方面的专家，来向我们介绍他目前的研究工作。specialize in 专攻；专门从事于（某一科目）
I can see how supportive the school of athletics, as well as fine arts and all extra-curricular activities.
我能看出来这个学校对体育运动有多支持，对美术以及所有课外活动也是一样。extra-curricular activities 课外活动
The school is identified in federal records as a single-sex school with only male students.
在联邦文件中，该学校被定义为只允许男性学生就读的单一性别学校。a single-sex school 男校或女校
It is remarkable that large mixed-abillity classes could be kept together for maths throughout all their compulsory schooling.
mixed-abillity class 各层次学习能力的学生在一起上课的班级
Even though the great majority of students are well-behaved, there is a small minority that engage in anti-social behaviour.
尽管绝大多数学生都表现良好，还是有极少数学生有反社会行为。anti-social behaviour 对他人和社会有负面影响的行为
The children coming out of this school are going to be well-adjusted adults and very good for our future.
从这所学校毕业的孩子会成为适应力很强的人，并对我们的未来很有益。well-adjusted adults 能够很好适应社会生活的成年人
Students who are not achieving academically tend to consequently drop out of school.
无法在学业上有所成就的学生往往会因此而辍学。drop out of school 退学
Experts believe that people who speak two languages have a clear learning advantage over their monolingual schoolmates.
专家们相信会说两种语言的学生相比单一语种的学生具有明显的学习优势。have an advantage over 优于，比……有优势
monolingual adj. 仅用一种语言的，仅懂一种语言的
Most writers repress individuality to please public.
大多数作家会压抑个性以取悦大众。repress individuality 压抑个性
