名词
中文翻译：流感
同义词：
['flu', 'epidemic flu', 'pandemic flu例句：1. The flu has been spreading rapidly across the country.（流感正在迅速在全国传播。）']
例句：
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1. The flu has been spreading rapidly across the country.
流感正在迅速在全国传播。
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2.The flu vaccine is recommended for everyone over 6 months old.
建议6个月以上的所有人接种流感疫苗。
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3. Many people have caught the flu during this winter season.
许多人在这个冬季季节感染了流感。