事实：一般情况代码设计的延误是由于未预料到的困难或者没有按照最开始的设计工作。

Reality: Typically, coding delays occur because of unexpected difficulties or because the original design just didn't work.

youdao

下面我从未预料到的：我那聪明的女儿在学校遇到了困难。

It was a problem I'd never anticipated: My brainy daughter was having trouble in school.

youdao