工程项目的建设是一个错综复杂的过程。
The construction of an engineering project is a complicated process.
这常常导致错综复杂的、非模块化的代码，在长期开发过程中，这样的代码非常脆弱。
This generally results in code that is intricate and non-modular and that can often be quite fragile during the long development process.
当代数学的论证过程往往错综复杂，需要用上很多不同的步骤、成分和符号。
A typical argument in modern mathematics is often quite intricate, requiring many different steps, ingredients, and notation.
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