乌克兰悼念飞行员遇难，战机坠毁原因仍成谜

乌克兰一架F-16战机坠毁，飞行员丧生，引发乌克兰全国哀悼。事故原因尚不明确，但两位美国高级军事官员表示，事故可能并非友军误伤。

## Original Title: As Ukraine Mourns a Pilot’s Death, Jet’s Crash Is Still a Mystery

## Article Content:
In a reversal, two senior U.S. military officials say the cause of the F-16’s crash was probably not friendly fire.

Original article: https://www.nytimes.com/2024/08/31/world/europe/ukraine-f16-pilot-crash.html