latex表格实现文本自动换行

egin{table*}[]
    centering
    egin{tabular}{cclll}
    hline
  Method & Metric form  & Ideas & Solvers  & Reg.  \
  hline
   Global DML      & Complete PSD matrix                 & parbox[c]{4cm}{Maximizing the sum of distances between dissimilar points while keeping the distances between similar examples small.}  & parbox[c]{2cm}{Projected gradient descent; Eigenvalue decomposition.} & No  \ 
   hline
   LMNN & Complete PSD matrix& parbox[c]{4cm}{Local large margin nearest neighborhood; \ Slack constraints.} &parbox[c]{2cm}{ Sub-gradient descent.}& No   \ 
    end{tabular}
    caption{Caption}
    label{tab:my_label}
end{table*}

　　采用parbox命令，使用方法parbox{c}{4cm}{text},   以上latex表格显示结果如下：