Security Application Block 安全应用程序块
Get multiple block security status 获得多重块的安全情况
Block chain security technology 区块链安全技术
Authorities have boosted security in Islamabad and are believed to be staging large container trucks to block major roads into the city.
VOA: standard.2009.03.12
But Israel hopes that the United States, which holds a veto in the Security Council, will block any attempt to put Israeli officials on trial for war crimes.
VOA: standard.2009.11.06
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