送交者: kma 于 2005-4-20, 12:57:46:
回答: 我看到美国人也写"a update"故有此问 由 2Cul4U4 于 2005-4-20, 12:39:25:
google may mislead people, every googler should keep that in mind
The article a is used before consonant sounds; an is used before vowel sounds.
Words beginning with h, o and u sometimes begin with a vowel sound, sometimes a consonant sound.
Consonant Sound: a heroic couplet (h sound)
a once-happy lover (w sound)
a universal problem (y sound)
Vowel Sound: an honest man (no h sound)
an only child (o sound)
an unusual insect (u sound)