a e i o u 单词中的发音答:18) [ ] dear, idea, deer, here, fierce,19) [ ] pear, care, there, fair 20) [ ] tour, poor,3. 容易混淆的元音 1) [e] [] bed bad; men, man; pen, pan; lend land 2) [i:] [ei] real rail; greet, great; mean, main; read raid 3) [e] [AI] bet bite; ...