lay it on the line
US /leɪ ɪt ɑn ðə laɪn/
UK /leɪ ɪt ɑn ðə laɪn/

1.
開誠布公, 直言不諱
to speak frankly and directly about something, often something difficult or unpleasant
:
•
I had to lay it on the line to him about his poor performance.
我不得不開誠布公地告訴他他表現不佳。
•
The manager decided to lay it on the line to the team about the company's financial struggles.
經理決定開誠布公地告訴團隊公司面臨的財務困境。