pit /pit/ n. ［c］ 1.地洞；坑；地窖： saw-pit 锯木坑；dig a pit 挖一个坑；seal a pit 封闭一洞 2.矿井，煤矿：an open pit 露天煤矿；a coal pit 煤坑；竖井；work all one’s life down the pit 一辈子在矿井下干活
pitfall /ˈpitfɔ:l/ n.［c］圈套；隐患；缺陷：a covered pit for use as a trap陷阱The wolf was caught in a pitfall.那只狼是利用陷阱捉到的。Several pitfalls remain in the way of an agreement.在达成协议的进程中还有几个隐藏的困难。We need to be alert to potential pitfalls.我们需要警惕潜在的危险
