guǎi diǎn拐点拼音guǎi diǎn注音ㄍㄨㄞˇ ㄉ一ㄢˇ词语解释拐点[ guǎi diǎn ]⒈ 把曲线上向上凹的弧从向下凹的弧分开或者相反地分开的点。英point of inflection;⒉ 见“反挠曲点”英contraflexure;