For example, this is x=t, x=t^, you're going to have x=sin t and cos t and log t.

例如,这是x=t,x=t^,你还会遇到正弦,余弦,对数函数

耶鲁公开课 - 基础物理课程节选

At moment going through a bad patch mentally, but not having to use street drugs to cope is a good feeling. if you can understand that, cos I can't.

BBC: Coming Clean: An addict's diary

Industry experience isn't required to land a job at Travelers Cos.

WSJ: Avoiding the Ax: Where the Jobs Are

Nearly 47% of 3, 000 people surveyed by investment bank Piper Jaffray Cos. feel they don't need a 4G LTE network, though younger consumers and men are more likely to see the technology as useful.

WSJ: iPhone Will Stress-Test LTE Networks