Definition: completely and finally Level: C2
让我们彻底解决这场争端，以便我们能够继续前进。
Let's settle this dispute ___once ___and ___for ___all so we can move on.
新的证据应该能一劳永逸地推翻那个理论。
The new evidence should disprove that theory ___once ___and ___for ___all.
我们需要从根本上彻底解决问题。
We need to address the root cause of the problem ___once ___and ___for ___all.
