encounter
vt./ n.遇到，遭遇，遭到
The doctor had encountered several similar cases in the past.那位医生过去曾碰到过好几个类似的病例。
end
n.末尾;尽头;终止;结果 v.结束，终止
Hooker’s death marked the end of an era .胡克的逝世标志着一个时代的结束。
endeavor
vt./ n.努力，尽力，尝试
ending
n.结局，结尾，终结
a story with a happy ending结局美满的故事
