because the pronouciation of M

begins with a wowel sound, [e].

I learned this from an English master in this forum:)

所有跟帖： 

• 回复：because the pronouciation of M -i999- ♀ (80 bytes) () 06/22/2011 postreply 10:33:56

• Well, only when M is used as the letter M itself and hence proun -tern2- ♀ (196 bytes) () 06/22/2011 postreply 10:51:17

• Not only M -全国牙防组- ♂ (184 bytes) () 06/22/2011 postreply 10:54:37

• 还有：an RN :) -千与.千寻- ♀ (0 bytes) () 06/22/2011 postreply 13:01:26

• a good one! -非文学青年- ♀ (0 bytes) () 06/22/2011 postreply 13:33:17

• Thanks, Learnt -金迷- ♂ (0 bytes) () 06/22/2011 postreply 10:38:05