foreign adversary 外國敵對勢力

foreign adversary 
繁: 外國敵對勢力
簡: 外国敌对势力

美國表示，一種被稱為「哈瓦那綜合症」（Havana Syndrome）的神秘疾病「極不可能」是由外國敵對勢力攻擊所致。

「哈瓦那綜合症」：美國官方報告稱神秘疾病「極不可能」來自外國勢力（2023年3月2日）。BBC News中文，取自https://www.bbc.com/zhongwen/trad/world-64820571

A globe-spanning U.S. intelligence investigation has concluded it is “very unlikely” a foreign adversary is responsible for the “Havana syndrome” ailment that has afflicted U.S. diplomats, spies and other personnel worldwide, according to declassified findings released on Wednesday.

‘Havana syndrome’ not caused by foreign adversary, U.S. intel finds (2023, Mar 2). The Standard. Retrieved from https://www.thestandard.com.hk/breaking-news/section/6/200973/’Havana-syndrome’-not-caused-by-foreign-adversary,-U.S.-intel-finds