To learn his system, people must first know how to write letters of the alphabet and learn which sounds they represent.

为了学习他的系统，人们必须首先知道如何书写字母表中的字母，并学习它们的发音。

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The management cadre need learn use the data base management system, understand and be good to agile use computer, the ability quite keeping cam finer fields give play to his or it's acting.

管理干部要学会运用数据库管理系统，懂得并善于灵活运用计算机，才能使计算机辅助管理更好地发挥其作用。

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My brother has decided not to enroll his young, visually impaired son in classes to learn Braille, claiming the system is archaic.

我兄弟已经决定不让他年轻的视障儿子在办理学习盲文，他认为该系统过时了。

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The 36-year-old has said he wouldn't want to finish his career with another team because he is too set in his ways to learn a new offensive system.

BBC: Brett Favre in action against Cincinnati

Laimbeer says his system is "very simple" to learn.

WSJ: Laimbeer: Liberty will be fun to watch in 2013

Mark Musselman, an executive consultant for McGhee Productivity Solutions, in Denver, says one senior executive he coached was so frustrated after trying to learn a new system that "he was ready to throw up his arms and stop doing it" after a month.

WSJ: How Productivity Tools Can Waste Your Time