通常失去语言能力的人，简称听障人士，皆因听觉系统或发音系统发生障碍造成。
Usually, hearing system or vocal organs occurring obstacle cause all the people who lose his speaking ability, called for short hearing handicap.
通常失去语言能力的人，简称听障人士，皆因听觉系统或发音系统发生障碍造成。
Usually, hearing system or vocal organs occurring obstacle cause all the people who lose his speaking ability, called for short hearing handicap.
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