travel a great deal

travel a great deal I used to travel by air a great deal 关于许多的概念.i used to travel a great deal.i used to travel ( )A. 英语翻译I used to travel by air a great deal when i was a boy.My a great deal of a great deal用法 not a great deal 为什么不能用 i would travel by air a great deal think a great deal中 a great deal是宾语 a great deal about a great deal of区别 we communicate a great deal,." 急,a great deal of