Conclusion Street children lacked AIDS prevention knowledge.
结论流浪儿童缺少防艾滋病基本知识。
Prevention begins with knowledge, he said.
他说预防要从知识开始。
Today, new scientific knowledge offers hope for the successful treatment and prevention of ALD.
今天，新的科学知识提供了成功的希望的治疗和预防肝病。
Here's to introduce the knowledge about AIDS prevention.
下面就来介绍一些关于艾滋病预防知识。
The size of the crowd and mobile, to popularize knowledge about disease prevention very difficult.
人群规模大、流动性强，给防病知识普及带来非常大的难度。
The size of the crowd and mobile, to popularize knowledge about disease prevention very difficult.
人群规模大、流动性强，给防病知识普及带来非常大的难度。
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