Latex写作求助！

wannabeat

我想在日期和Contents之间加上一段Abstract。但是我在倒数第5行make it title前加\begin{Abstract}相关代码就是倒不出相应的结果！求帮助！谢谢！

具体的输出结果和我使用的代码如下：

% -----------------------------------

% ===== The Title of Your Paper =====

% -----------------------------------

\title{Best Coaches}

% ----------------

% ===== Time =====

% ----------------

\date{\today}

\begin{document}

% Abstract should be put before `\maketitle'

\begin{abstract}

We determine the sweet spot on a baseball bat. We capture the essential

physics of the ball-bat impact by taking the ball to be a lossy spring and the

bat to be an Euler-Bernoulli beam. To impart some intuition about the model,

we begin by presenting a rigid-body model. Next, we use our full model

to reconcile various correct and incorrect claims about the sweet spot found

in the literature. Finally, we discuss the sweet spot and the performances of

corked and aluminum bats, with a particular emphasis on hoop modes.

\begin{keywords}

dream; cometrue

\end{keywords}

\end{abstract}

\maketitle

\pagestyle{empty}

% Generate the Table of Contents, if it's needed.

\tableofcontents

\newpage