The point is the arrow A, somebody has chosen to write in terms of i prime and j prime as Ax prime and Ay prime.

解决问题的关键在于矢量 A,可以用这样的形式来描述,i' ? Ax' + j' ? Ay'

耶鲁公开课 - 基础物理课程节选

Because that would be a very strange article for somebody to write.

CNN: STORY HIGHLIGHTS

Double chip speeds, which happens every 18 months, and somebody is sure to write software that will kill an old way of doing a task.

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"When they sat down to write Over The Rainbow, they were writing for somebody who had the vocal range and the sincerity and the capability of communication that those in the know in Hollywood already felt she had, " explained Ken Sefton of the Judy Garland Club.

BBC: NEWS | Entertainment | Over The Rainbow's enduring appeal