Ming Dynasty in "outside" outside Great Wall, but also has constructed "in side" the Great Wall and "in three passes" the Great Wall.
明朝在“外边”长城之外，还修筑了“内边”长城和“内三关”长城。
After sitting out the opener, he hauled in three scoring passes a week later.
坐了本场比赛中，他的行动在三个得分及格一个星期之后。
Conclusion The countermeasures of "three passes" is an effective method for controlling infection inside college and pollution in society, and guaranteeing medical safety.
结论“三关”对策是保证一次性医疗用品质量、有效控制院内感染和社会污染、确保医疗安全的有效方法。
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