Purosulfate

Have you ever been to Nanjing?

你曾去过南京吗？

It doesn't matter to me.

两个都可以。

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。