• Organizers in Vancouver say the athletes will notice very little difference between a natural ski slope and the one that has been built for the games.

    VOA: special.2010.02.10

  • I don't know how well you can see it in this figure here, is the slope of a straight line connecting these two points, and as the points come closer and closer, the straight line would become tangent to the curve.

    我不清楚你们对于这个图像的理解,这条连接两点的斜线,随着两点距离逐渐缩小,两点连线会变成曲线的切线

    耶鲁公开课 - 基础物理课程节选

  • Army commandos dropped from a helicopter examined the mangled and burnt wreckage on the slope of a heavily-forested hill, in an area infested with Maoist rebels.

    VOA: standard.2009.09.03

$firstVoiceSent
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