The decline could still be a temporary consequence of warm weather or half-term: pupils have been one of the main transmission routes.
这种下降可能还会是天气温暖和学生期中假的暂时结果——学生是主要的传染途径之一。
The decline could still be a temporary consequence of warm weather or half-term: pupils have been one of the main transmission routes.
这种下降可能还会是天气温暖和学生期中假的暂时结果——学生是主要的传染途径之一。
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