杨鹏的gre难句看了十多年了，趁打卡机会学一下The physicist rightly dreads precise argument,since an argument that is convincing only if it is precise loses all ots force if the assumptions on which it is based are slightly changed,whereas an argument that is convincing though imprecise may well be stable under small perturbations of its underlying assumptions,首先单词要认识，其它需要练习