• The entire legislative schedule is even more compressed as lawmakers and the White House increasingly turn their focus to the November mid-term congressional elections.

    VOA: standard.2010.07.19

  • If you connect the body to a spring, which is neither compressed nor extended, there's no force acting on it.

    如果将一个弹簧连在这个物体上,弹簧既没有被压缩也没有被拉伸,也不会有力作用在它上面

    耶鲁公开课 - 基础物理课程节选

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