pit.fall
n.(名词)An unapparent source of trouble or danger; a hidden hazard:隐藏的危险,隐患:不明显的困难或危险;隐患:例句:.potential pitfalls stemming from their optimistic inflation assumptions.(New York Times).他们过于乐观和膨胀的自负带来了许多隐患.(纽约时报)
A concealed hole in the ground that serves as a trap.陷阱,圈套:作为陷阱用的地上的隐蔽洞穴