单词	tangent line
释义	tangent line noun : a line at a fixed point P of a curve that is the limit approached by the secant PQ as Q approaches P along the curve Word History Etymology translation of New Latin linea tangens
随便看	choral Choral Bass choral service choral speaking choralcelo chorale chorale prelude choraler chorales choralest choraller chorallest chorallier choralliest chorally chorals Chorasmia Chorasmian chord chord organ chord pitch Chordaceae chordacentrum chordae chordal

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