He has invented innumerable excuses, told endless lies.他编造了数不清的借口和谎话。He kept waffling and finding excuses not to close the deal.他一直举棋不定，找出种种理由不予成交。It's easer for people to make excuses so we don't have to chang...
a recent fall-off in sales近来销售量的减少One slip and you could fall off the building.脚下一滑就可能从建筑物上跌下去.When you are learning to ride a bicycle, you often fall off.初学骑自行车时, 常会从车上掉下来....