短语
中文翻译：看起来非常沮丧或不开心
同义词：
['look downcast', 'look disheartened']
例句：
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1.She looked so blue when she heard the bad news.
她听到那个坏消息时，看起来非常沮丧。
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2. The poor boy looked blue after his long day's work.
那个可怜的男孩工作了一整天后看起来很沮丧。
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3.He looked blue as he walked home from school.
他从学校回家时看起来非常沮丧。