Books influence people and they have an effect upon the state-of-the-art and practice.

书籍可以在艺术级和实践级别上都给人以影响。

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Article 41 the State shall practice the system of professional and technical titles.

第四十一条国家实行专业技术职称制度。

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Happiness is a state of mind, and like all things, it takes practice.

幸福是一种思想状态，和所有事物一样，都需要锻炼。

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Happiness is a state of mind, and like all things, it takes practice.

幸福是一种思想状态，和所有事物一样，都需要锻炼。

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