adverse factor的用法和樣例：
例句
- To have lost sale in the best quarter of the year is a minus factor for the sale team.
對於銷售人員來講，在一年中最有利的季節失去產品銷售是個不利因素。 - The flooding accident caused by goaf water has always been a risky factor affecting the production safety of coal mines.
摘要礦井老空水水害一直是困擾煤礦安全生產的不利因素，必須加強其防治措施方面的研究。
