The safety of the network not only is at the aspect of the virus prevention and cure of network, but also on ability that system prevents illegal abroad guests in break.

网络的安全不仅表现在网络的病毒防治方面，而且还表现在系统抵抗外来非法黑客入侵的能力方面。

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People search after ways to prevention and cure virus diseases for long time but not develop effective reagent yet.

长期以来，人们一直在探索防治病毒病的方法，但到目前为止还未研制出有效防治试剂。

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Alcoholic liver disease has become the main cause of liver injury following the virus hepatitis, and its prevention and cure has become an important medical task.

酒精性肝损伤已成为继病毒性肝炎后的主要肝损伤病因，因此酒精性肝病的防治已经成为重要的医疗课题。

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