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When a group spreads out in different directions from one place, in the shape of an open paper fan — police searching a park, birds leaving a tree. You can also fan out things you hold: fan out the cards.
（呈扇形）散開、展開
原始詞典資料2 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
fan outverb
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To spread out into the shape of a fan.
- West of the summit the cutting fans out at the entrance to the new yard on the north side.
- Its streets fan out towards the clifftops, and its sheltered North Landing harbours open-decked fishing boats, called 'cobles'.
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slangTo display (or reveal) oneself as a fan or obsessive.
- A 2014 study published by Innovations in Clincal Neuroscience, however, pointed to "narcissistic features, dissociation, addictive tendencies, stalking behavior, and compulsive buying" among people who fan out over celebrities.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。