mistake/ mɪs'teɪk /

1.noun [c] 
(error) (in calculations,text etc) 错误

2.noun
(blunder) 过失

3.vt.
(be wrong about) 弄错

to make a mistake
犯错
you're making a big mistake
你正在犯一个严重的错误
to make the mistake of doing sth
误做某事
it's a (big) mistake to do that
那么做是个(严重的)错误
there must be some mistake
一定是搞错了
to do sth by mistake
误做某事
to mistake A for B
把A误认为B
there is no mistaking...
…不可能被弄错