It took them nearly 3 years ( before )the new stadium was completed.为什么不用until

问题描述:

It took them nearly 3 years ( before )the new stadium was completed.为什么不用until

It took them nearly 3 years ( before )the new stadium was completed.
until一般用在否定的
如:they didn't complete the new stadium until nearly 3 years passed away .