Language Point 11

Factors affecting general health... (Para. 4)

factor: influence that helps to produce a result

His friendly way is a factor in his rapid success.

他待人友善是他很快获得成功的因素。

Hard work is an important factor in success.

勤奋是成功的重要因素。

What factors are responsible for a decreased population?

人口减少的原因是什么？