And the abolitionists might use Texas as a base for propaganda against the South.

VOA: special.2009.02.05

So if I were to solve this problem, here's the way I would do it. I would say, first thing I want to do, is I want to input a value for the base as a float.

如果我想要解决这个问题，这就是我要解决它的方式了，第一件我要做的事情就是要,输入一个浮点数作为三角形的底。

麻省理工公开课 - 计算机科学及编程导论课程节选

In a crowded community, the base is seen as land for new homes and businesses.

VOA: standard.2009.11.11

That same Quinnipiac poll also found that by a margin of 59 to 34 percent, Americans believe that preventing terrorists from using Afghanistan as a base of operations is still a worthwhile goal for the United States.

VOA: standard.2010.07.30

He said the main goal must be to prevent the country from again becoming a base for terrorist attacks on the United States as it was in 2001,which he said requires preventing the Taliban from returning to power.

VOA: standard.2009.09.22