When he looked at the paintings up close, he saw brush strokes, texture and fields of color.
VOA: special.2010.03.24
I got the feeling, when I was talking to some of you guys, that maybe you should brush up on your calculus.
当我和你们中某些人聊天时,我感觉到,你们应该好好复习微积分
OCW Self learners are coming to OCW to explore whole new areas of study as well as to brush up on subjects that they took a while ago and perhaps got the rest in the end.
自学者浏览,搜索全新领域的研究,补充学过的科目的知识,使之完整。
The tiny silicon wires stick up from the base,or substrate, looking something like a microscopic hair brush.
VOA: standard.2010.02.19
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