By mistake to attract is one of by mistake important reasons which the senior citizen lungs infects, creates the serious consequence to senior citizen's life and the health.
误吸是老年人肺部感染的重要原因之一，对老年人的生命和健康造成严重后果。
By mistake to attract is one of by mistake important reasons which the senior citizen lungs infects, creates the serious consequence to senior citizen's life and the health.
误吸是老年人肺部感染的重要原因之一，对老年人的生命和健康造成严重后果。
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