put your head on the block
US /pʊt jʊər hɛd ɑn ðə blɑk/
UK /pʊt jʊər hɛd ɑn ðə blɑk/

1.
冒風險, 承擔責任
to risk your reputation or position by supporting something or someone, especially when there is a chance of failure or criticism
:
•
I'm willing to put my head on the block for this project because I truly believe in it.
我願意為這個項目冒風險,因為我真的相信它。
•
He put his head on the block for his team, defending their controversial decision.
他為他的團隊冒了風險,為他們有爭議的決定辯護。