We also acknowledge that the consequences of an airplane crash are liable to be far more catastrophic than, say, those of a cyclist clipping a curb on his way home from the shops. Accordingly, designing and manufacturing an airplane is many times more demanding and thorough than designing and assembling a bicycle is.
我们都承认，飞机是一种高度复杂的机器，而自行车则否。我们也知道，坠机的后果要比你从商店骑车回家时遭遇爆胎可怕得多。因此，设计和制造一架飞机的要求要比设计和组装一辆自行车严苛和周到得多。