英文: His disappearance is unaccounted for.
中文: 他失踪原因不明.英文: Robert's disappearance is a complete riddle.
中文: 罗伯特的失踪完全是一个谜。英文: His disappearance is being looked into by the police.
中文: 他失踪一事警方正在调查.英文: Massage Milk's disappearance: an April Fool's joke?
中文: 翻译:按摩乳的消失:一个愚人节玩笑?英文: Causes of Liangzhu Culture’s Disappearance from Micropaleontology
中文: 从微体古生物研究探讨良渚文化突然消亡原因