是可数名词。
n. 错误误会过失
vt. 弄错误解
vi. 弄错误解We've made a dreadful mistake.
我们犯了一个很大的错误。
One mistake and you're toast.
要是出一次错,你就完了。
You are making a big mistake.
你正在犯一个严重的错误。
It's all been a ghastly mistake.
这是个极其恶劣的错误。
She paid dearly for her mistake.
她因犯错误而付出了巨大的代价。
mistake是可数名词还是不可数名词
可数名词,l made a mistake.我犯了一个错误。
it's impossible not to make mistakes.不犯错是不可能的。
he seldom makes  mistakes.他很少犯错误。
we should receive mistakes of children.我们应该接受孩子们的错误。
some mistakes can't be forgiven.good.