I need color pencils -- class this afternoon.

A of B for C to D in

请翻译，解释

B for 用于，用作，

我今天上课需要彩色铅笔。

in class 尽管是常用词组，但和I need color pencils 搭配不如用for class 更贴切。

need A for B,可看作一常用搭配，需要A用于B。以下提供实例借以说明：1）A for B是常用搭配
2）for class 和 in class 一样，中间可不需要冠词。

【例】2009年9月9日 ... I need it for class. dictionary (n) 字典. Eric uses his Chinese-English dictionary after class.

【例】I always need less than case lot supplies for class and catering, ....

【例】30 May 2009 ... It provides all the tools I need for class demonstrations plus plenty of pencil and pen options to tackle any sketching opportunities that I ...
robotninjamonsters.blogspot.com/.../kokuyo-neocritz-transformer-pencil-case.html –

【例】I really want one of these for class but I prefer to use pencil for class notes. ...
We need a pen for the grid lines and we need a brush for the ...

【例】He figured he could need a different pen for class assignments. ...

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