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Sustainability is not an option, it's an obligation to future generations.
商业中最危险的话是"我们一直都是这么做的"。
一本书不仅仅是纸和墨水;它是活着的呼吸。
解析:世间万物都是相对而生,相互依存,体现了老子的辩证思想。
The elements of consciousness are to be determined by experimental analysis.
The hepatitis C virus was a hidden enemy, but every hidden enemy can be found with the right tools and determination.