人们普遍相信早餐是一天中最重要的一餐。

It is a popular ___belief that breakfast is the most important meal of the day.

她把自己的积蓄投了进去，相信公司会成功。

She invested her savings in the ___belief that the company would succeed.

教育可以改变那种认为某些学科只适合某一性别的错误观念。

Education can change the mistaken ___belief that some subjects are only for one gender.