在中国西南部四川省的山区，孩子们需要扶着藤梯爬过一段800米(半英里)的绝壁，才能到达学校。
In the mountains of southwest China's Sichuan province, children descend an 800-meter (half-mile) cliff on unsteady vine ladders to reach school.
其结果可对川渝产忍冬藤的合理用药、质量控制及进一步开发提供参考。
The result can be used as a reference for reasonable medication, quality control as well as further study for them.
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