To catch the ringleader first in order to break up the gang; to tackle the most crucial or fundamental issue first when dealing with a complex problem.
在解决这个复杂项目中的众多难题时，我们必须“擒贼先擒王”，先处理那个最关键的技术障碍。
When dealing with the many challenges in this complex project, we must "catch the ringleader first," tackling the most critical technical obstacle first.
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