• "The pipes started rattling, and it sounded like they were going to come through the wall,".

    VOA: standard.2010.01.02

  • That means, it can only be rattling around in a circle of radius R.

    也就是说它只能,限制在一个半径为 R 的圆上运动

    耶鲁公开课 - 基础物理课程节选

  • You even hear the windows rattling. It's really becoming extreme, this weather.

    你甚至听到窗户被震得噼啪作响。天气变得越来越极端了。

    There is no 课堂 - SpeakingMax英语口语达人

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