The abstract is usually less than 200 words and provides basic information from the paper's major sections - introduction, methods, results and discussion.

一般的摘要不会多于200字，并且概括地介绍文章主要信息，包括引言，方法，结果和讨论。

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The transition from abstract data types to classes involves an important stylistic difference: the introduction of change and imperative reasoning.

从抽象数据类型到类的转变中包括了一个重要的格式差异：引进了变化和命令推理。

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ABSTRACT: This article is an introduction to Pyramid Valley Vineyards Angel Flower, the best Pinot Noir from New Zealand.

摘要： 本文将要介绍的这款新西兰黑皮诺是来自金字塔谷酒庄的天使之花品牌。

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