Differential method

differential ['dɪfə'rɛnʃəl]

adj. 差别的;特意的;[数]微分的;[机，物]差动的; n. [数]微分;差别;工资级差;[机]差动器;

di, dif, divid 表示”分开”;”取消”,”否定”;”不同”

method ['mɛθəd]

n. 方法;条理;

meth(meta-=after)+od(way)→方法；体系；秩序（=a way after,a following after）

And when I did,

就算我睡着了，

Young man may die but old men must die.

年轻人可能会死，老年人难免不亡。

when they would be capable of providing information about traffic jams and suggesting alternative routes, when they would be used in hospitals to help doctors to diagnose illnesses, when they would relieve office workers and accountants of dull, repetitiv

计算机可以使办公室人员和会计免除那些枯燥、重复的劳动。