表格中的奇怪排列

Question

对于代码：

\begin{tabular}{@{}cccc@{}}
    Type: & A 1 & B 2 & C 3\\
    \multicolumn{4}{c}{Long Sentence, verryyyyy long}
\end{tabular}

结果是：

为什么 A1、B2 这么近而 C3 位于左侧？

想要类似的东西：

Answer 1

假设Long Sentence, verryyyyy long比 tabularx` 短text width ... (if it is longer, than sentence had to be broken into more lines). with use of：

\documentclass[margin=3mm]{standalone}
\usepackage{tabularx}
\newlength{\tabwidth}     % for determining of table width
 \begin{document}
\setlength\tabcolsep{0pt}
\settowidth\tabwidth{Long Sentence, verryyyyy long} % measurement for table width
\begin{tabularx}{\tabwidth}{*{4}{>{\centering\arraybackslash}X}}
    Type:   & A 1   & B 2   & C 3       \\
    \multicolumn{4}{c}{Long Sentence, verryyyyy long}
\end{tabularx}
\end{document}