It's the camel nose under the tent.

真正的目的在后面呢。

We've also got the " domino effect, " the " thin end of the wedge, " and everyone's favorite, " letting the camel's nose inside the tent." But " slippery slope" is the most common, especially in public policy.

我们还有“多米诺骨牌效应”、“楔子的薄端”，以及每个人最喜欢的“让骆驼的鼻子进入帐篷”。但“滑坡”是最常见的，尤其是在公共政策领域。