巨大混凝土砖，保护人体以免辐射。
该物质具有保护人体免疫系统的细胞不受艾滋病毒侵袭的作用。
The material has the protection of the human immune system cells from HIV attack.
简单地说，益生素是无害的细菌，能保护人体免遭有害细菌的侵袭。
Put simply, probiotics are harmless bacteria that help protect the human body from harmful bacteria.
简单地说，益生素是无害的细菌，能保护人体免遭有害细菌的侵袭。
Put simply, probiotics are harmless bacteria that help protect the human body from harmful bacteria.
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