Meaning: intricate; complex
Original: 习近平指出，当前，世情、国情、党情、军情都在发生复杂深刻变化，我军在政治上面临的考验错综复杂。
Usage: A versatile metaphor, 错综复杂 can be used to describe the complexities of anything from novels to international relations or military processes, as in the exert above.
Source: 中央军委政治工作会议在延安召开 习近平出席会议并发表重要讲话