privateering
[praɪvə'tɪrɪŋ]
n.
以私掠船巡逻，掳获商船;
v.
（战时特准攻击敌方商船的）武装民船，私掠船( privateer的现在分词 );
例句:
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Letters of Marque: Take letters from a warning friendly power authorizing privateering.
私掠许可证: 从某一个国家获得合法抢劫的证书.
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All nations engaged in privateering from the earliest times until the 19 th century.
所有国家在19世纪之前都曾利用武装民船进行私掠行动.