These are a source of strength, we should care.
这些都是力量的源泉，我们应该呵护。
This, then, is the unique source of our strength as a health agency.
那么这就是做为一个卫生机构我们独特的力量来源。
That is a source of our strength.
这就是我们力量的源泉。
Books are a source of knowledge and knowledge is strength.
书本是知识的来源！知识就是力量！
Books are a source of knowledge and knowledge is strength.
书本是知识的来源！知识就是力量！
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