diff --git a/1000-hours/sounds-of-american-english/2.4.4-vv.md b/1000-hours/sounds-of-american-english/2.4.4-vv.md
index 92522366..f8f0eb69 100644
--- a/1000-hours/sounds-of-american-english/2.4.4-vv.md
+++ b/1000-hours/sounds-of-american-english/2.4.4-vv.md
@@ -4,20 +4,20 @@
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：
+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:
+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
+> - *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：
+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:
+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
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+> - *Go away* - ˈɡoʊ əˈweɪ ⭢ ˈɡoʊʷəˈweɪ
+> - *Do all* - ˈduː ˈɔːl ⭢ ˈduːʷɔːl
+> - *Do it* - ˈduː ˈɪt ⭢ ˈduːʷɪt
+> - *Throw it* - ˈθroʊ ˈɪt ⭢ ˈθroʊʷɪt
\ No newline at end of file