# 2.4.4. 元音 + 元音（Vowel + Vowel）
“元音 + 元音” 的组合之中，会出现**加音**（*intrusion*）。
In combinations of "vowel + vowel", an *intrusion* sound may occur.
前一个元音以 ɪ/i/iː 结尾，会出现加音 j：
When the first vowel ends in ɪ/i/iː, an intrusive j sound emerges:
> - *I am* - ˈaɪ ˈæm ⭢ ˈaɪjæm
> - *He is* - ˈhiː ˈɪz ⭢ ˈhiːjɪz
> - *She is* - ˈʃiː ˈɪz ⭢ ˈʃiːjɪz
> - *They are* - ˈðeɪ ˈɑːr ⭢ ˈðeɪjɑːr
前一个音节以 ʊ 结尾，比如 ʊ/uː/aʊ/oʊ，会出现加音 w：
Similarly, when the preceding syllable ends in ʊ, such as ʊ/uː/aʊ/oʊ, an intrusive w sound appears:
> - *Go away* - ˈɡoʊ əˈweɪ ⭢ ˈɡoʊwəˈweɪ
> - *Do all* - ˈduː ˈɔːl ⭢ ˈduːwɔːl
> - *Do it* - ˈduː ˈɪt ⭢ ˈduːwɪt
> - *Throw it* - ˈθroʊ ˈɪt ⭢ ˈθroʊwɪt