她注意到她的护照已经消失了。

她注意到她的护照已经消失了。

She noticed that her passport had disappeared.

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She noticed that her passport had disappeared.

disappeared 是动词 disappear 的过去分词形式。disappear 由前缀 dis-(表示"否定、相反")和 appear("出现")组成,字面意思是"不出现",即"消失、不见"。

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