The enemy killed one of our comrades and we killed an enemy agent.

敌人杀了我们的一位同志，我们宰了一名敌特。

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Being an intelligence agent, his chief job is to gather the secret intelligence of the enemy.

作为一名情报员，他的主要工作就是收集敌方的秘密情报。

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An agent provocateur reported that the enemy had started out.

有密探禀报，敌军已经出发。

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Hitchcock and his scenarists (Charles Bennett, Alma Reville, Ian Hay, and Jesse Lasky, Jr.) scatter clues like gum wrappers as Ashenden and the General visit Switzerland to find an enemy agent whose skulduggery affects negotiations under way in Palestine.

NEWYORKER: Secret Agent

"Compaction is the biggest enemy of lawn grass, " said Reeves, a retired horticultural agent of the University of Georgia Cooperative Extension Service, who now hosts radio and television shows about lawn and garden interests.

CNN: Spring wedding, backyard disaster