名词
中文翻译：声音变化
同义词：
['tone variation', 'pitch variation']
例句：
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1. The sound of the oceanwaves is a beautiful sound variation.
海浪的声音是一种美妙的声调变化。
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2. The singer's voice has a unique sound variationthat sets it apart from others.
这位歌手的声音有一种独特的声调变化，使它与众不同。
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3. The music festival featured a variety ofsound variations that delighted the audience.
音乐节上展示了各种声调变化，让观众感到愉悦。