inflection point,concave upward

transfer (词形迁移) neither nouns nor verbs have inflections in
拐点(inflection point)是一条连续曲线凹凸性改变的点,是使切线穿越
【预售】in-memory data management: an inflection point for
预订 the seventh guard: inflection points
预订 english verb inflection : a generati. [9789027932624]