He had been engaged in emissary activity before he was discovered.
在被发现以前他一直从事
谍活动。
谍；密使谍的；密使的
;
使, 差, 送;
;
;
，君;客，暗杀者;He had been engaged in emissary activity before he was discovered.
在被发现以前他一直从事谍活动。
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