in schoola) SESin the school building 在学校里 Sandra’s not in school today. 桑德拉今天没上学。
b) American EnglishAmESES attending a school or university rather than having a job 在求学,在上学 Are your boys still in school? 你的儿子们都还在上学吗?
in school• The kids are in school between nine and three.• Aaron's girlfriend is still in school.
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