fast fastly 的区别是什么?

fast fastly 的区别是什么? 我想问一下fast和fastly的区别,该在什么时候用?能否举个例子几乎没有fastly = =那换成slow 和 slowly的区别吧 fast的副词就是fast,不是fastly对吧? fast的副词形式是fast还是fastly quickly的词性,同义词,要精讲,再顺便问一下,fast&fastly是quickly的同义词吗? She runs fast ,还是she runs fastly? fastly与fast有什么不同? 是develop fast 还是develop fastly walk rather fast 还是walk rather fastly fast和quick的区别是什么? Quick和fast的区别是什么? 为什么是be fast asleep 而不是be fastly asleep? Look!Here comes a ___ train.It runs so___. A.fast;fastly B.fastly;fast C.fast;fast D.fast;faster 单项选择It is too----.please run --------.A.slowly;fast B.slow ;fastly C slow;fast Dslowly;fastly fast,quickly的区别 请问英语swift, rapid, quick, fast的区别是什么?谢谢! She taught --------English last year ,and she learnt very------.A.herself ;fast B.herself;fastly C.her;fastD.her ;fastly how fast can you type?为什么用fast 而不用fastly