我怎样才能将冒号放入摘要中并证明其合理性？

Question

我需要这样的东西（带冒号、对齐和大写字母）：

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现在我只有这样的东西：

                        Abstract
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我在用：

\documentclass[11pt, twoside, a4paper, twocolumn]{article}

Answer 1

该abstract环境仅仅是一个quotation带有标题的环境。因此，以下内容就足够了：

\documentclass[11pt, twoside, a4paper, twocolumn]{article}
\usepackage{lipsum}% http://ctan.org/pkg/lipsum
\begin{document}
\begin{quotation}
\noindent ABSTRACT:\ \lipsum[1]
\end{quotation}
\end{document}