valid ['v鎙id] adj. 正当的;有充分根据的;符合逻辑的
The most valid measure for the lowest probability of traffic is to
teach people to abide to all traffic rules.
将发生车祸的概率降到最低的最有效的措施之一就是教育人们要遵守一切交通规则。
lurk [l:k] v. 潜伏;埋伏;潜在
Dangers lurk in the path of wilderness.
在这条荒野的小路上潜伏着危险。
indifference [in'difrns] n. 不关心;不在乎
Sometimes callous indifference is not only a tool to avoid being hurt.
冷漠有时候并不是无情,只是一种避免被伤害的工具。
skepticism ['skepti] n.怀疑态度;怀疑论
Descartes puts forwards the method of general doubt to counteract