英语语法 either sd .or sd doing sth还是什么 sth

英语语法 either sd .or sd doing sth还是什么 sth 英语语法：要么……要么…… 关键词：either .or . either...or... 这句英语语法有错吗?Debbie can either lead or follow. He's gone either to Hangzhou or to Yunnan.为什么不是：He's gone to either Hangzhou or Yunnan. 为什么要either to, or to? EITHER OR 和EITHER NOR! dsf sd s s sd?fsdffe either or怎么造句 用either or造句 either...or的意思 either...or...的用法 either or是什么意思 either or什么意思? either of和either or一样么? What's past is past, can never go back, or come forth either.什么意思 It's best to water plants either e_____ in the morning or late at night. It's best to water plant either e___ in the moring or late at night. 翻译in this business it's either a feast or a famine