谁能帮我讲解一下这一句的语法?

题目

谁能帮我讲解一下这一句的语法?
Every season of my nanny career kicked off with a round of interviews so surreally similar that I'd often wonder if the mothers were slipped a secret manual at the Parents League to guide them through.
尤其是slip这个单词的用法,和具体含义.

答案

供参考
我每次新开始应徵做保姆﹐所碰到的面试离奇地相类似﹐以致我好奇想知道是否父母
联会暗中给予这些母亲一份秘密的指引来进行面试.
注
Parents League﹕译为’父母联会‘
slipped 静悄悄的提供
surreally 离奇地