R, r
n
(pl R´s, r´s )
1 the eighteenth letter of the English alphabet 英语字母表的第十八个字母
`Rabbit´ begins with (an) R/`R´. rabbit一字是以r字母开始的.
2 (idm 习语) roll one´s r´s => roll2. the three `R´s reading, (w)riting and
(a)rithmetic, as the basis of an elementary education 基本三会(指作为初等教育基础的读、 写、 算).