fallback是fall back的单数

fall back

美 ['fɔl.bæk]

英 ['fɔːlbæk]

单数：fallback 复数：fallbacks

同义词

replacement,contingency,alternative,stand-in,substitute

fallback

显示所有例句

1.	应变计划；退路a plan or course of action that is ready to be used in an emergency if other things fail

	What's our fallback if they don't come up with the money? 要是他们拿不出钱，我们如何应变？
	We need a fallback position if they won't do the job. 如果他们不干这个工作，我们就需要一个应变的方案。