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.

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我们没有预料到机器投入生产前会遇到意外困难。

We didn't expect to hit a snag before the machine was ready for production.

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我们没有预料到机器投入生产前会遇到意外困难。

We didn't expect to hit a snag before the machine was ready for production.

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