complexity

The complexity of the global economy makes it difficult for experts to predict the exact timing of a recession.

(Chinese) 全球经济的复杂性使得专家难以预测经济衰退确切发生的时间。

Software developers often struggle with the complexity of legacy code written by former employees.

(Chinese) 软件开发人员经常在应对前员工编写的遗留代码的复杂性时感到吃力。