The agreements provide for the following principles of cooperation: equality, mutual benefit, non interference in internal affairs and respect for sovereignty.

协议规定以下合作原则：平等、互利、 不干涉内部事务以及尊重各自的主权。

youdao

They resent foreign interference in the internal affairs of their country.

他们憎恶对他们国家内政的外来干涉。

《牛津词典》

Any attempt to discuss the issue of human rights was rejected as an unwarranted interference in the country's internal affairs.

任何希望讨论人权问题的要求都被视为对该国内政的无端干涉而被拒绝了。

《柯林斯英汉双解大词典》

Chinese papers back Beijing's actions as defence of non-interference in internal affairs.

BBC: Chinese, Iranian press alone back UN Syria veto

State media quoted the ministry as praising "the firm Russian stance which is based on the UN principles of non-interference in internal affairs or the threat to use force against the safety of any state".

BBC: Syria conflict: US says Assad can have no post-war role

But all were in reality acts of interference in the internal affairs of a sovereign country, though in each case some argument, good or bad, was offered to justify the action.

ECONOMIST: Sometimes it is a risk that must be taken