I wanted to, but Jack Davis needed a photographer.
我真的想参加上课, 但Jack Davis要我拍照。
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。