| 释义 |
〔sleeper〕A spy or saboteur who is planted in an enemy country and who lives unobtrusively as a citizen of that country until activated into clandestine operations by a prearranged signal.间谍：安插到敌对国的间谍或破坏者，平时象该国的公民一样不引人注目地生活，直到接到预先安排好的信号开始进行秘密的活动〔sail〕To start out on such a voyage or journey.启航：开始进行这种航行或旅行〔undertake〕undertake a task.开始进行一项任务〔plunge〕To begin an unfamiliar venture, especially after hesitating:冒险，采取断然行动，结婚：开始进行一次不熟悉的冒险，尤其是在踌躇一阵之后： |