diff --git a/1000-hours/sounds-of-american-english/2.2.6-sz.md b/1000-hours/sounds-of-american-english/2.2.6-sz.md
index 6a90a91f..9051dff6 100644
--- a/1000-hours/sounds-of-american-english/2.2.6-sz.md
+++ b/1000-hours/sounds-of-american-english/2.2.6-sz.md
@@ -19,6 +19,6 @@ Also, it's important to note that, following an s that
> * *school* skuːl → sguːl
> * *frustrate* ˈfrʌˌstreɪt → ˈfrʌˌsdreɪt
-另外，英文的辅音并没有长短区分 —— 有些语言的辅音是有长短区分的，虽然亚洲语言基本都没有这种差别。然而，英文的 f/v、s/z、ʃ 是可以拉长的，尤其是 s/z。
+另外，英文的辅音并没有长短区分 —— 有些语言的辅音是有长短区分的，虽然亚洲语言基本都没有这种差别。然而，英文的 f/v、s/z、ʃ 以及 ts 是可以拉长的，尤其是 s 和 ts。
-In addition, in English, there's no differentiation between long and short consonant sounds. This is a feature found in some languages but is generally not present in Asian languages. However, in English, the sounds of f/v, s/z, and ʃ can be lengthened, especially s/z.
+In addition, in English, there's no differentiation between long and short consonant sounds. This is a feature found in some languages but is generally not present in Asian languages. However, in English, the sounds of f/v, s/z, ʃ, and ts can be lengthened, especially s and ts.