It was an obvious mistake for him to have gone alone.

他独自一人去，这是一个明显的错误。

youdao

It was a definite mistake for him to have gone alone.

他独自前去是一个明显的错误。

youdao

It was an obvious mistake for him to have gone alone.

他独自前去是个很明显的错误。

youdao

It was an obvious mistake for him to have gone alone.

他独自前去是个很明显的错误。

youdao