名詞 pitfall:

1. an unforeseen or unexpected or surprising difficulty
   同義詞：booby trap
2. a trap in the form of a concealed hole
   同義詞：pit

1. The road to the conquest of cancer is long and full of pitfall.
   戰(zhàn)勝癌癥的征途是漫長(zhǎng)的，而且布滿(mǎn)意想不到的困難。
2. If John had come straight home none of this would have happened. Ah well, life is full of snares and pitfalls and no one is proof against them all.
   要是約翰直接回家就不會(huì)發(fā)生這種事了。算了吧，生活充滿(mǎn)了誘惑和風(fēng)險(xiǎn)，沒(méi)有人能擋得住的。
3. A concealed hole in the ground used as a trap; a pitfall.
   陷阱地上用做陷阱的隱藏的洞; 陷阱

pit.fall

n.（名詞）
An unapparent source of trouble or danger; a hidden hazard:
隱藏的危險(xiǎn)，隱患：不明顯的困難或危險(xiǎn)；隱患：
例句：
.potential pitfalls stemming from their optimistic inflation assumptions.(New York Times)
.他們過(guò)于樂(lè)觀和膨脹的自負(fù)帶來(lái)了許多隱患.(紐約時(shí)報(bào))

A concealed hole in the ground that serves as a trap.
陷阱，圈套：作為陷阱用的地上的隱蔽洞穴