1·The strategy is working: analysis of arrest patterns suggests that the Sinaloa cartel has been more effective than its rivals at infiltrating law enforcement.
该策略的确起了作用：关于被捕模式的分析表明，在对执法部门的渗透上，锡那罗亚贩毒集团较之同行更为有效。
2·The agency spent a decade infiltrating the cadre of undercover Russians, who lived as normal suburban Americans but were allegedly gathering policy information.
该组织再过去的十年里向美国渗透俄罗斯间谍人员，他们装扮成生活在郊区的普通美国人，但是据指称收集美国政策信息。
3·The water is infiltrating the gravel bed.
水正渗透进碎石底层。
4·Make up, perfume and skincare products used after the expiry date carry a risk of irritation and infection, Debenhams said. This is due to air and bacteria infiltrating the products.
由于空气和细菌渗透原因，化妆品、香水和护肤品在截止日期后使用会有带有刺激性和感染的风险，德本汉姆公司说。
5·They are doing a great job already infiltrating the Olympics!
他们正在做一个很重要的工作，而且已经渗透到奥运的方方面面！