The White House was temporarily placed on lockdown with the US Secret Service closing entrances and exits.
白宫被临时封锁 美国特勤局关闭了出入口。
US Secret Service
原声例句
BBC世界头条
China Daily 播客集
He had blood on the side of his head and pumped his fist as US Secret Service agents took him to a nearby vehicle.
美国特勤局特工将其护送上车时，特朗普头部一侧有血，挥舞着拳头。
BBC 听力 2014年10月合集
The Director of the US Secret Service Julia Pierson has resigned a day after accepting full responsibility for a security breach at the White House.
美国特工处处长朱莉娅·皮尔森(Julia Pierson)为白宫安全纰漏承担全面责任一天之后辞职。
中文百科
美国特勤局 United States Secret Service
（重定向自US Secret Service）
美国特勤局（又译美国特勤处、美国秘勤局等，英文：United States Secret Service，缩写USSS）是美国联邦政府的执法机构，隶属于美国国土安全部。该机构雇员分为便衣特工和制服特工。2003年3月1日之前，特勤处隶属于美国财政部。
英语百科
United States Secret Service 美国特勤局
（重定向自US Secret Service）
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The United States Secret Service (USSS) is an American federal law enforcement agency under the U.S. Department of Homeland Security. Until 2003, the Service was part of the U.S. Department of the Treasury.
The U.S. Secret Service has two distinct areas of responsibility: