Most teachers at that time thought this new letter grading system was an easy, fair and clear way to grade students.

当时的大多数教师认为这种新的字母评分制度是一种用来给学生打分的简单、公平、明确的方式。

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One easy hike takes visitors two kilometers to a clear pool of water and waterfalls.

VOA: special.2009.09.28

And it is not always easy to answer, because sometimes they do not always make their deepest or most fundamental questions altogether clear.

答案并不总是简单的，因为有时候它们不总是,让那些最深刻和最基础的,问题一起清楚地呈现。

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And so, it's not an easy, clear-cut question.

所以，这不是一个简单的非黑即白的问题。

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The service is designed to make it easy to clear non-critical messages out of your primary in-box.

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Liz: You need calls to action that are easy, clear and compelling.

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Vendors need to make PCs easy to get out of the box, they must provide easy and clear setup instructions (with matching pictures), they should color-code cables, and they must eliminate the need to reboot during the initial setup because it scares new users, he says.

CNN: Technology - Intel: Make PCs simpler