(每日一词）wail

Wail  /weɪl/  n. 恸哭；号啕大哭; v. 恸哭；号啕大哭; 

Meaning: a long, high, loud cry, especially because of something unpleasant; to make a long, high cry usually because of pain or sadness 

1) 对比：wail--mail---sail

2) 联系：w—哇哇哭，呜呜哭

e.g. The women gathered around the coffin and began to wail, as was the custom in the region. 女人们都围到了棺材旁，开始号啕大哭，当地的风俗就是这样。