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Sheep is the faithful companion of human and an indispensable source of life.
羊自古以来是人类的忠实伴侣和不可或缺的生活来源。
youdao
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Water is the source of life and an indispensable substance in human life.
水是生命之源，是人类生活中必不可缺的物质。
youdao
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Water is the source of life and an indispensable substance in human life.
水是生命之源，是人类生活中必不可缺的物质。
youdao