单词	conic section
释义	conic section noun 1. : a plane curve, line, or point that is the intersection of a plane and a right circular conical surface 2. : a curve generated by a point which always moves so that the ratio of its distance from a fixed point to its distance from a fixed line is constant [conic section 1: 1 straight lines, 2 circle, 3 ellipse, 4 parabola, 5 hyperbola]
随便看	thrush blackbird anomal- anomal anomala anomali- anomali anomalies anomaliped anomalipod anomalism anomalist anomalistic anomalistic anomalistical anomalistically anomalistic month anomalistic year anomalo anomalo- anomalops anomalopteryx anomaloscope anomalous anomalous anomalous dispersion

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