Using phrases like "Evidently, it defines ten simple methods for managing roles", one must wonder if the manuscript got swapped with author's preliminary notes by accident.

书中用到了类似的短句“显然，它定义了十个简单方法用来管理角色”，读者不得不怀疑，是否在偶然情况下，出版商误把作者的草稿当作了最后的定稿。

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This environment is designed to increase productivity for all roles throughout the data life cycle and to help reduce the complexity and cost of managing database applications.

这种环境旨在提高数据生命周期内所有角色的生产力，并帮助降低管理数据库应用程序的复杂性和成本。

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This portfolio is designed to increase productivity for all roles throughout the data life cycle and to help reduce the complexity and cost of managing database applications.

该产品组合的目的是增加数据生命周期中的所有角色的生产力，以及降低管理数据库应用程序的复杂性和成本。

youdao

The initiative comes as government and private insurers emphasize the importance and need for physicians to take on new roles as quarterbacks that managing medical care needs of patient populations through so-called Accountable Care Organizations.

FORBES: AMA Puts $10 Million Bounty On New Doctor Training Effort

In this period of change we are seeing the Chief Customer Officer roles emerge that are charged with managing the customer experience and the technologies and applications required to do so.

FORBES: A Better Way to Manage the Customer Journey

If all of this works then what we are talking about is Amazon as a private company effectively taking on the traditional roles of a nation state: managing liquidity demand and internalizing externalities.

FORBES: Jeff Bezos: Currency Manipulator