单词	parabola
释义	pa·rab·o·la \pəˈrabələ\ noun (-s) Etymology: New Latin, from Greek parabolē — more at parable 1. : a plane curve generated by a point so moving that its distance from a fixed point divided by its distance from a fixed line is equal to 1 : a conic section formed by the intersection of a cone with a plane parallel to an element of the cone 2.  a. : a bowl-shaped microphone  b. : a bowl-shaped antenna to receive and transmit radio waves preferentially in one particular direction [parabola 1: F fixed point; CD fixed line; x moving point; AB axis; xy distance from x to CD; pp′ parabola]
随便看	spanish windlass Spanish wine spanish wine spanish yellow spank spanker spanker spanker boom spanking spankingly span-long spanned spanner spanner spannerman spanness span-new spanning span of apprehension span of attention spanokopita span roof spans spans spans and snops

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