关于人工智能的伦理影响一直存在争议。

There is ongoing ___controversy over the ethical implications of artificial intelligence.

由于其具有煽动性的内容，这次艺术展览引发了相当大的争议。

The art exhibition sparked considerable ___controversy due to its provocative content.

政府的新政策已成为一个主要的争议来源。

The government's new policy has become a major source of ___controversy.