How many classes do you have

几节───A few sections;课───course

We need to create a few sections and 2 or 3 rails to guide the surface creation.───我们需要建立以下截面和2个或3个导轨线来创建表面。

They assumed that when running a query you would want to zoom into a few sections of the document, so they built the language around XPath queries.───他们假设您在运行查询时希望将范围缩小到文档的一些章节，所以他们围绕XPath查询构建该语言。

Kelly: Our teacher has more than 150 essays to read. He probably won't notice that we copied a few sections.───凯莉：我们老师要看150多篇报告，他很有可能不会注意到我们抄了几段篇章。

These chapters are greatly expanded versions of a few sections in the second edition, and a fascinating read.───这是从第二版中的一小部分内容扩展而来的，相信会给您带来醉人的感受。