His family have been a very positiveinfluence on him.
他的家庭对他有十分良好的影响。
《牛津词典》
2
I don't think I could ever find the words to describe the positiveinfluence you have had on my life.
我想我无法用语言来形容您对我生活的积极影响。
3
These friends-of-friends, people we might spend time with at social or work gatherings, might not be like us but they can still have a positiveinfluence because we share the same sort of interests.