1. To give a particular tone or inflection to. '定'。''''。'调'。''给予一个确定的音调或声调。
2. Final inflection, which is the pitch change at the end of an utterance , has underlying meaning. 句尾语音变化，即一句话结束时的音调变化，包含着一定的意义。
3. Find the critical number, point of inflection, relative extrema, increasing or decreasing interval, concave upward or downward interval of the function. 找出此函数的端点，反曲点，相对极值，递增或递减区间，凹向上或凹向下的区间。
英英解释
n.
1. a change in the form of a word (usually by adding a suffix) to indicate a change in its grammatical
2. the patterns of stress and intonation in a language
3. deviation from a straight or normal course
4. a manner of speaking in which the loudness or pitch or tone of the voice is modified
