Mental poker is a secure multi-party computation solution in specific scene. In recent years, the studies on mental poker protocol in academe are mainly based on Trusted Third party (TTP).

智力扑克是一种特定场景的安全多方计算，近些年来，学术界对智力扑克协议的研究基本都是基于可信第三方的。

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Police did not secure the scene until eight or nine days after Williams died.

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Even after being wounded by shrapnel himself, he helped to secure the scene and evacuate his wounded comrades to safety.

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Libyan police arrived immediately to secure the scene, said de Sanctis, who was unsure of who was behind the attack.

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