He was up for a time and then, without warning, despondent again.
兴高采烈, 但忽然又情绪低落下来。
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再抱幻想的, 大失所望的;幸福的;He was up for a time and then, without warning, despondent again.
兴高采烈, 但忽然又情绪低落下来。
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