(OMITTED) Senators John McCain and Jon Kyl of Arizona announced a plan to step up border security, including a request for 3,000 National Guard troops along the Arizona-Mexico border.

VOA: standard.2010.04.21

I'm out of numbers so I can just write down the 7 and now, if you're following along, what step comes next?

再没有数字了，所以直接将7写下来，下一步是什么？

哈佛公开课 - 计算机科学课程节选

Along these lines, the evolutionary biologist Richard Dawkins took the general step of suggesting that animals are the vehicles through which genes exploit to reproduce.

按此种方法，进化论生物学家理查德·道金斯,采取常规方式建议到动物是工具,可被用于繁衍基因。

耶鲁公开课 - 心理学导论课程节选