There was a conflict of interest between his business dealings and his political activities.

他生意和政治活动之间存在着冲突。

Their interest clashed with ours.

他与我冲突。

Harmonious society is a society that being able to resolve and mitigate the conflict of interests,and that being able to realize beneficial equability.

和谐社会就是一有能力解决和化解冲突,并由此实均衡社会。