point at
参考词典中point at的常规释义：
基本释义
- 指向
参考例句
- At this point your logic is at fault.
在这一点上你的推理是错误的。 - The starting point at a racetrack.
跑道上的起点 - A point at which a function is undefined.
无定义点函数没有定义的一点 - He pointed at the diagram to illustrate his point.
他指着图表来说明他的论点。 - The point at which the sides of an angle intersect.
顶点角的两边相交的点
- At this point your logic is at fault.
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