UFO
🇬🇧/ˌjuː ef ˈəʊ; ˈjuːfəʊ/ 🇺🇸/ˌjuː ef ˈoʊ/
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A UFO is an object seen in the sky or landing on earth which cannot be identified and which is often believed to be from another planet. 不明飞行物; 飞碟
noun [专属名词] abbr. 不明飞行物（Unidentified Flying Object）
I don't believe these reports of UFO sightings. 我不相信这些有关目击不明飞行物的传言。
- UFO 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）
- Lesson 43 Are there strangers in space?
- 网友用 “UFO” 造句精选
- Have you ever heard of UFO? 你有没有听说过不明飞行物？