under the hood
成語所屬單字hood
under the hood — 慣用語
1. Relating to the hidden or technical details of how something functions, not just
1.慣用語
釋義
在引擎蓋下；內部運作
Relating to the hidden or technical details of how something functions, not just its visible features.
例句
Maya checked under the hood of the software to find the bug.
Did you look under the hood of that new car's engine?