单词 | turning point |
释义 | Word Frequency turning pointnoun 1. a moment when the course of events is changed the turning point of his career 2. a point at which there is a change in direction or motion 3. mathematics a stationary point at which the first derivative of a function changes sign, so that typically its graph does not cross a horizontal tangent 4. surveying a point to which a foresight and a backsight are taken in levelling; change point |
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