12The letter a often has two kinds of pronunciations in words,one is long vowel a,like the sound you hear in the middle of cake;the other one is short vowel a,like the sound you hear in the middle of cat.字母a常在单词中发两种音,一种是长元音/eI/,如在单词cake中的发音;另一种是短元音/A/,如在单词cat中的发音。 12The letter a often has two kinds of pronunciations in words, one is long vowel a, like the sound you hear in the middle of cake; the other one is short vowel a, like the sound you hear in the middle of cat. Two kinds of sounds are often made in words, one is long vowel / eI /, as pronounced in the word cake; the other is short vowel / A /, as pronounced in the word cat.