紫苏是我国传统的药食同源植物，具有悠久的历史文化价值。在《诗经》《尔雅》等古代典籍中，紫苏被称为“荏”“桂荏”“荏苒”等，后来被收录于《名医别录》《本草纲目》等药学著作。
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"The NHS is issuing immediate guidance to hospitals to ensure trauma and urgent care can safely continue and to support prioritisation of waiting lists based on patients' needs over the coming weeks."，这一点在Line官方版本下载中也有详细论述
2. 合并：将两个有序子数组合并成一个有序数组