Orientation is simply facing in the right direction; navigation involves finding ones way from point A to point B.
定向只是面向正确的方向;导航包括找到从 A 点到 B 点的路线。
At one point a bird trilled in the conservatory.
在某一刻,一只鸟儿在温室里唧啾啼叫。
An F is a failing grade worth zero toward a student's grade point average.
VOA: special.2009.03.05
Given the abstraction, the notion of a point as an instance with some values, I can now start building segments.
真的很有帮助,基于这个抽象,点的概念也就是一个,有一些值的实例。
getting things done, going from point A to point B
把事情完成,从一个地方到另一个地方,
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