That's just a preconceived notion.

那是你先入为主的观念。

youdao

The instantaneous perfection of art, the necessity for its renewal--this is true only through a preconceived notion.

艺术转瞬即逝的完美和其更新的必要性——仅从一种先入为主的观点上出发，这是准确无误的。

youdao

So many walk around with this preconceived notion that they are being evaluated and judged by other people... and actually caring that they might be.

周遭的很多人都带有这样的臆想：他们正在被别人评头论足…实际上，也许这只是一种同情心而已。

youdao

Climatologists should be permitted to research the causes, unfettered by any such preconceived notion.

BBC: News Online

United States employees have shattered the preconceived notion that work is limited to the four walls of an office.

FORBES: U.S. Is On Cloud 9 When It Comes To Competition