Last summer, when Chinese people fought the flood in the South, Beidou helped measure the rise and fall of the flood water.
去年夏天,当中国人民在南方抗洪时,北斗帮助测量了洪水的涨落。
One of the first features of language a child learns well is to control the rise and fall of the voice to make the difference between stating and questioning.
孩子学好语言的第一个特征就是控制声音的升降,从而区分陈述和疑问。
Cadence means the rise and fall of the voice in reading with rhythm.
顿挫抑扬是形容朗读时声音的高低曲折和和谐的的节奏。
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