名词
中文翻译：Unknown
同义词：
['voice change', 'tone shift', 'vocal modulation例句：1. The teacher noticed achange in his voice when he spoke tothe students.（老师注意到他跟学生说话时声音发生了变化。）2. During the meeting', 'therewas a sudden change of voice from thespeaker.（会议期间，发言者突然改变了语调。）']
例句：
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1. The teacher noticed achange in his voice when he spoke tothe students.
老师注意到他跟学生说话时声音发生了变化。
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2. During the meeting, therewas a sudden change of voice from thespeaker.
会议期间，发言者突然改变了语调。
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3. The artist used different voices for differentcharacters in her play.
这位艺术家在她的剧本中为不同的角色使用了不同的语调。