N-COUNT 起决定性作用的事实(或论点) A clincher is a fact or argument that finally proves something, settles a dispute, or helps someone achieve a victory. 起决定性作用的事实(或论点) [informal]
DNA fingerprinting has proved the clincher in this investigation.
在这次调查中,DNA指纹鉴定起了决定性的作用。
The clincher was City's second goal, scored minutes from the end.