non-interven·tion
noun/ˌnɒn ɪntəˈvenʃn/
/ˌnɑːn ɪntərˈvenʃn/
(also non-interference)
[uncountable]- the policy or practice of not becoming involved in other people’s disagreements, especially those of foreign countries
（尤指对外国事务的）不干涉 - a policy of non-intervention in the internal affairs of other countries
不干涉他国内政的政策
- a policy of non-intervention in the internal affairs of other countries