mistake可數(shù)嗎能用many修飾嗎

mistake是可數(shù)名詞,復(fù)數(shù)形式為mistakes。
mistake能用many修飾。
例句：
She paid dearly for her mistake.
她因犯錯誤而付出了巨大的代價。
The engagement was a bad mistake.
這婚約是一項大錯。