lift the lid on

US /lɪft ðə lɪd ɑn/
UK /lɪft ðə lɪd ɑn/
"lift the lid on" picture
1.

揭露, 揭开盖子, 曝光

to reveal something secret or previously hidden, often something scandalous or unpleasant

:
The investigation aims to lift the lid on corruption within the department.
这项调查旨在揭露部门内部的腐败。
A new documentary will lift the lid on the dark side of the fashion industry.
一部新纪录片将揭露时尚界的阴暗面。