a finger in the pie

1. I told him I would work for him only if I could have a finger in the pie.
我告诉他我愿为他工作,只要让我参与此事。

来自《简明英汉词典》

2. You may be sure that Li Ying has a finger in the pie.
你可以肯定李英是参与其事的。

来自《现代汉英综合大词典》