National policies should not be determined by outside influence.

国家政策的制定不该受外部影响。

《新英汉大辞典》

It is impossible for us to be immune from outside influence.

我们会受到外界的影响。

youdao

For example: If your partner ignored you, was it because of who your partner is, or because of some outside influence, such as an enormous workload?

举个例子，如果你的伴侣忽视了你，是因为他人本身就是那个样子呢，还是因为其他外在的影响因素，比如工作压力太大？

youdao

But animal doctor Pradeep Singhal blames the decrease in camels mainly on the influence of the outside world.

VOA: special.2009.01.13

But it came down to this theme that still is so important, and was already so important, which is, what is Russian that should be kept uniquely Russian and closed to outside influence?

但是归根结底,这牵扯到一个相当重要的主题,那就是俄国的哪些特质,该不受外界影响而保留下来

耶鲁公开课 - 欧洲文明课程节选

As in the Congo, the people of Irian Jaya have no political influence outside their country.

ECONOMIST: Bitter pill

Perhaps the wilful obscurantism and dreadful English that now afflict humanities faculties in Britain as elsewhere have eroded their influence outside the academy.

ECONOMIST: Bagehot

While the case highlights state differences in the recognition of same-sex marriages, analysts have said it will probably have little influence outside Maryland because federal law allows states to ignore how other states define marriage.

CNN: STORY HIGHLIGHTS