do-or-die /ˈduːwɚˈdaɪ/ adjective Learner's definition of DO-OR-DIE
1
always used before a noun : very determined坚定不移的；不屈不挠的 2
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used to describe a situation in which you have to do something or you will fail, lose, etc.生死关头的 -
With only 10 seconds left, this is a do-or-die situation for the team. If they don't score, the game is over.只剩下10秒钟，这是球队生死攸关的时刻。如果他们不能得分，比赛就结束了。
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It is do-or-die for the team.这是球队的生死关头。