名词
中文翻译：音调
同义词：
['tone', 'pitch', 'tone of voice', 'pitch of speech sound']
例句：
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1. The singer's voice has a very high pitch.
歌手的声音非常高。
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2. The pitch of the note is determined by the length of the string.
音符的音高由弦的长度决定。
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3. The pitch of the song changed as the tempo increased.
随着节奏加快，歌曲的音高发生了变化。