The individual colours within the light spectrum are believed to have an effect on health.

　　光譜中不同的顏色被認為對健康有不同的影響。

　　Your house may have an effect on your figure.

　　你的房子可能會(huì )影響你的身材。

　　Modern farming methods can have an adverse effect on the environment.

　　現代農業(yè)耕作方法可能對環(huán)境造成負面影響。

　　Lack of money will have an adverse effect on our research programme.

　　缺少資金將對我們的研究方案有不利影響。

　　Aloe may have an analgesic effect on inflammation and minor skin irritations.

　　蘆薈可能對發(fā)炎以及輕微的皮膚炎癥具有鎮痛作用。