代码中有些方面你以为平常不过，但是一旦你要实现系统中其他所有必需的部分时，复杂度又随之放大。

Aspects of the code that you think are trivial will magnify in complexity once you implement all the other required parts of the system.

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例如，男孩一旦到了青春期，哭的次数只有女孩的四分之一，此外我们现在哭的次数比婴儿时期要少得多。

Boys, for example, cry only about a quarter as often as girls once they reach teenage years, and we all cry a lot less now than we did as babies .

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但是查尔斯私底下计划要揭露政府的肮脏秘密，这个计划一旦实施，凯西的事业就毁了，甚至可能搭上她的性命。

But when Charles' hidden agenda threatens to expose the government's dirty little secrets, what started out may cost Kathy her career and even her life.

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But once you start publishing things in between covers, you actually have to decide what goes in and what goes out.

但一旦你开始把书籍加上封面出版，你就必须决定要出版哪些书。

耶鲁公开课 - 新约课程节选

But as soon as we hope to find that guerdon, the golden ring, ! comes the blind Fury with the abhorred shears -- ouch!

但是一旦我们想要找到这奖赏，这金戒指，它会带着剪刀暴怒而至--哎唷！

耶鲁公开课 - 弥尔顿课程节选

So really, once we start writing more interesting programs, you would have to type out long annoying commands like that to just compile more sophisticated programs.

实际上，一旦我们开始写一些更复杂的程序时，你们可能要键入那样一些长的，讨厌的命令,来编译跟高级的程序。

哈佛公开课 - 计算机科学课程节选