名词
中文翻译：发音
同义词：
['voice', 'tone', 'pronunciation']
例句：
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1. The teacher asked the students torepeat the speech sound.
老师要求学生们重复发音。
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2. The recording of the speech sound isavailable online.
这个发音录音可以在线上找到。
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3.The speech sound can be used to conveyemotions in a conversation.
发音可以用来在对话中传达情感。