虽然季节在变化
Although the seasons are changing
以上为机器翻译结果,长、整句建议使用 人工翻译 。
在正常年份大约有10-20%的人会感染季节流感,虽然每年这数字有变化。
About 10 to 20 in 100 people get seasonal (normal) flu during a normal year, although this varies from year to year.[4]
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