In contrast to each of these ideas, Covey advocates that leaders need to understand universal principles of effectiveness, and he highlights how vital it is for leaders to first personally manage themselves if they are to enjoy any hope of outstanding success in their work environments.
出自-2011年12月阅读原文
By explaining some essential geological principles.
出自-2010年6月听力原文
As he prepared the speech, Juan kept asking himself, "How can I make this clear and meaningful to someone who knows nothing about earthquakes or geological principles
出自-2010年6月听力原文