The skills in the game are based on a two-tier system with primary skills being class based and secondary skills (Trade Skills) being acquired from various "Trainers" from around the world.

游戏的技能系统构建于一个双重升级系统之上，第一技能的升级基于职业，第二技能（交易技能）则需要从分布于世界各地的各种各样“训练者”处获得。

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One of the primary benefits of reading books is its ability to develop your critical thinking skills.

读书的主要好处之一是它能培养你的批判性思维能力。

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Duan Jiayang, a 12-year-old student of a primary school in Yinchuan, Ningxia, learns the skills required to take care of vegetable fields.

段嘉扬是宁夏银川一所小学的12岁学生，他在学习打理菜地所需的技能。

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But the primary skills of an elastic enterprise reside around relationships of persuasion rather than control.

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The Education for All Global Monitoring Report 2012 calculates that one fifth of young people aged 15 to 24 years in all developing countries around the world have not even completed primary skills and lack skills for work.

UNESCO: Twenty percent of young New Yorkers out of school and out of work | United Nations Educational, Scientific and Cultural Organization

Unlike other such organizations, Vetransfer focuses on primary entrepreneurial skills to get small businesses off the ground.

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