翻译以下句子,重要的是第一句，后面是给你语境，至少要自圆其说，机器翻译不要

翻译以下句子,重要的是第一句，后面是给你语境，至少要自圆其说，机器翻译不要
He says the reality is that the high turnover of graduate recruitment managers in most bluechips means there is little continuity in how companies operate. "there is the difficulty in maintaining important contact with university careers departments, for example,"he explains ,"you need a depth of understanding to appreciate where the company is coming from and how it is progressing."
感谢每一位来帮忙的大神！！