If people infiltrate a place or organization, or infiltrate into it, they enter it secretly in order to spy on it or influence it.
例句
Activists had infiltrated the student movement...激进分子已经渗入到了学生运动中。The street protests had been infiltrated by people bent on violence...街头抗议的人群中已经渗入了一些倾向于暴力的人。
VERB
使渗入;使渗透
To infiltrate people into a place or organization means to get them into it secretly in order to spy on it or influence it.
例句
Some countries have infiltrated their agents into the Republic.一些国家已派间谍渗入了该共和国内部。
英英词典释义
Noun
1. a process in which individuals (or small groups) penetrate an area (especially the military penetration of enemy positions without detection)
2. the slow passage of a liquid through a filtering medium;
"the percolation of rainwater through the soil""the infiltration of seawater through the lava"