如何删除第 11-11 行段落中的过满 \hbox（太宽 12.0pt）

Question

\documentclass[10pt,twocolumn]{article}
\usepackage{graphicx}
\usepackage{amsmath}
\newcommand{\Keywords}[1]{\par\noindent
{\small{\em Keywords\/}: #1}}
\title{strong text}
\author{ \and
\centerline{Department of Computer Engineering,College of engineering,city}}
\date{}
\begin{document}

\maketitle
\begin{abstract}

Answer 1

\centerline声明中不需要\author，因为\author- 设置为\maketitle- 的一部分已经居中。因此，删除它（以及看似多余的\and）：

\documentclass[twocolumn]{article}

\title{strong text}
\author{Department of Computer Engineering, College of Engineering, City}

\begin{document}

\maketitle

\begin{abstract}
Some abstract
\end{abstract}

\end{document}