利用CSS强制将很长段的英文换行

<table cellspacing="0" cellpadding="0" width="100" border="0" style="word-break:break-all; "> 
    <tbody>
     <tr>
         <td> aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa</td> 
      </tr> 
    </tbody>
</table>