There is a scratch panel - just like a lottery ticket with number on the drug - each drug has a different number.

VOA: standard.2010.06.07

It eventually outputs a ticket with the right amount, but my God, how many steps does it take for us to get there?

最终它适当地输出了一张票，但是我的天，我们需要多少步骤才能得到？

哈佛公开课 - 计算机科学课程节选

"I have some connections with all the different ticket agencies, not just from the United States but from all different countries.

VOA: standard.2010.02.26

The United States national soccer team accomplished what few believed they could Wednesday night in Bloemfontein, dominating the world's number one ranked team and leaving the stadium with a merited 2-0 victory and a ticket to the final of the Confederations Cup on Sunday night in Johannesburg.

VOA: standard.2009.06.24