海量资源,尽在掌握
 n.[C](pl.as/as,As/As)1.英语字母的第一个字母:There are two as in“aboard”.“aboard”一词中有两个“a”。from A to Z从头至尾,彻底地,无所不包;not know A from B目不识丁 2.(学业成绩)第一,优,甲:He is a straight-A student.他是个全优生。......(本文共 160 字) [阅读本文] >>