She says letter grades do not effectively document learning or provide good direction to students.
VOA: special.2009.03.05
And a large part of being a good programmer, or learning to be a good programmer, is learning how to debug. And it's one of these things where it's harder.
没人能凭本能做好它,如果你相当一名优秀的程序员,或者想通过学习成为一名优秀的程序员,很重要的一部分就是学习怎么去调试。
This is a good site to go for learning grammar exercises, having listening exercises.
这是个做语法练习和听力练习的好网站。
It's a problem set where we've worked pretty hard to write some problems that we think will provide you with a good learning experience.
我们为了写出这个问题集,让大家好好学习下课没少侠功夫,你们应该通过材料来学习学习它。
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