FORBES 原文：These kids deliver endorsements in school cafeterias, at sleepovers, by cell phone and by e-mail.

CNN原文：The teacher has not been in school since the district learned of the assignment.

【 在 MeiYou9 的大作中提到: 】
: quora说的跟你刚好相反:
: "At school":
: - "At school" is commonly used to refer to the physical location of a school
: ...................
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FROM 114.251.186.*