And your body is undergoing | an enormous physical strain 接着你的身体会发生巨大的扭曲扩张。
2.
You ' re all going to experience intense mental and physical strain 你们将经历强烈的的心理和生理的压力
3.
The goal of this approach is to minimize the physical strain on the worker by structuring the physical work environment around the way the body works 本方法的目标是：围绕人体完成工作的方式，对物理工作环境进行构建，将劳动者的身体紧张程度降低到最低水平。
4.
The girl at the right noticed her squirmings and felt sorry for her . she was concentrating herself too thoroughly - what she did really required less mental and physical strain 右边的女孩注意到她坐不安稳的样子，心里为她难过：她思想太集中了，其实她不必这么紧张这么卖劲的。
