lay something on the line
US /leɪ ˈsʌm.θɪŋ ɑːn ðə laɪn/
UK /leɪ ˈsʌm.θɪŋ ɑːn ðə laɪn/

1.
何かを危険にさらす, 何かを賭ける
to risk something important, such as one's reputation or career, in order to achieve something
:
•
He decided to lay his reputation on the line by supporting the controversial proposal.
彼は物議を醸す提案を支持することで、自分の評判を危険にさらすことを決めた。
•
The CEO was willing to lay his job on the line for the new business strategy.
CEOは新しい事業戦略のために自分の職を賭ける覚悟だった。