To make an objective and rational study, on-the-spot investigation is a rather proper method.

而这种反映要做到客观、真实、理性，实地调查的方法是比较合适的重要途经之一。

youdao

To make an objective and rational study, on-the-spot investigation is a rather proper method.

而这种反映要做到客观、真实、理性，实地调查的方法是比较合适的重要途经之一。

youdao