first和the first的区别.请顺便讲讲序数词前有无定冠词的区别,

first和the first的区别.请顺便讲讲序数词前有无定冠词的区别, for the first time 和 the first time的区别,请详解 first of all first the first at first的区别 the first three和 three first的 意思 ,区别 the first time 和at the first time和for the first time的区别 the first和first有什么区别 first 和the first 有什么区别 the one 和the first的区别 求in the first time和at the first time 、for the first time的区别~ for the first time,first time,the first time和by the first time的具体用法和怎样区别? at the first,at first与first的区别 first 和 at first 的区别 on first和first的区别 first和at first的区别? first trial 和first instence 的区别? 请讲解一下For the first time 与 the first time的区别 讲解first和at first的区别.（ ）he was afraid to take the airplane.A.First B.At first C.Firstly D.First time first和first one区别 请高人帮帮忙