长时间延误
a delay that lasts a long time
持续很长时间的延误
相当大的延误
a significant or large delay
指较大或很重要的延误
巨大的延误
a very large delay
指非常大的延误
不必要的延误
a delay that could have been avoided
本可以避免的延误
过度延误
a delay that is more than is reasonable or necessary
超出合理或必要范围的延误
不可避免的延误
a delay that cannot be avoided or prevented
无法避免或阻止的延误