US /ˈfeɪs.bʊk/
UK /ˈfeɪs.bʊk/
商标
脸书
a social networking service where users can post comments, share photographs and links to news or other interesting content, play games, chat live, and stream live video. It was founded in 2004 by Mark Zuckerberg with his college roommates and fellow Harvard University students Eduardo Saverin, Andrew McCollum, Dustin Moskovitz, and Chris Hughes.
示例:
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I saw your post on Facebook.
我在脸书上看到了你的帖子。
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She spends hours every day on Facebook.
她每天花好几个小时在脸书上。