diff --git a/1000-hours/sounds-of-american-english/2.2-consonants.md b/1000-hours/sounds-of-american-english/2.2-consonants.md
index 768bfe5d..281016f7 100644
--- a/1000-hours/sounds-of-american-english/2.2-consonants.md
+++ b/1000-hours/sounds-of-american-english/2.2-consonants.md
@@ -7,4 +7,4 @@ All languages on Earth follow a similar pattern: in the flow of natural speech,
注意：有三个辅音，l, m, n，被称作 “音节辅音”，因为它们自带 ə 的音色。比如，*bottle* ˈbɑːtl, *bottom* ˈbɑːtm, button ˈbʌtn。有些词典会用 ᵊ，比如写成：
*bottle* ˈbɑːtᵊl, *bottom* ˈbɑːtᵊm, button ˈbʌtᵊn。剑桥词典的标注方式是：*bottle* ˈbɑːt̬əl, *bottom* ˈbɑːt̬əm, button ˈbʌtən……
-Please note, in English, there are three consonants—l, m, and n—that can act as "syllabic consonants." This means they carry a vocalic quality similar to the schwa sound (ə). For instance, in words like *bottle* (ˈbɑːtl), *bottom* (ˈbɑːtm), and *button* (ˈbʌtn), you can hear this quality. Some dictionaries use the symbol ᵊ to indicate this sound, rendering the words as follows: *bottle* (ˈbɑːtᵊl), *bottom* (ˈbɑːtᵊm), *button* (ˈbʌtᵊn). The Cambridge Dictionary, however, uses a slightly different notation: *bottle* (ˈbɑːt̬əl), *bottom* (ˈbɑːt̬əm), *button* (ˈbʌtən).
+Please note, in English, there are three consonants—l, m, and n—that can act as "syllabic consonants." This means they carry a vocalic quality similar to the schwa sound ə. For instance, in words like *bottle* ˈbɑːtl, *bottom* ˈbɑːtm, and *button* ˈbʌtn, you can hear this quality. Some dictionaries use the symbol ᵊ to indicate this sound, rendering the words as follows: *bottle* ˈbɑːtᵊl, *bottom* ˈbɑːtᵊm, *button* ˈbʌtᵊn. The Cambridge Dictionary, however, uses a slightly different notation: *bottle* ˈbɑːt̬əl, *bottom* ˈbɑːt̬əm, *button* ˈbʌtən.