diff --git a/1000-hours/sounds-of-american-english/3.2.6-sz.md b/1000-hours/sounds-of-american-english/3.2.6-sz.md
index ce289042..b2aa3f3c 100644
--- a/1000-hours/sounds-of-american-english/3.2.6-sz.md
+++ b/1000-hours/sounds-of-american-english/3.2.6-sz.md
@@ -6,9 +6,9 @@ The `s/z` sounds don't really pose a challenge for most people. When producing t
 
 ==此处需要图片==
 
-需要注意的是，`s` 之后的 `p`、`t`、`tr`、`k` 会被浊化，相应读成 `b`、`d`、`dr`、`g`：
+需要注意的是，`s` 之后的 `p`、`t`、`tr`、`k` 会被浊化，相应读成 `b`、`d`、`dr`、`g`（但是，音标标注却保持原样）：
 
-It's important to note that following an `s`, `p/t/tr/k` are voiced, meaning they are pronounced like `b/d/dr/g` respectively.
+It's important to note that following an `s`, `p/t/tr/k` are voiced, meaning they are pronounced like `b/d/dr/g` respectively, while the phonetic annotations remain unchanged.
 
 > * *speak* `/spiːk/` → `/sbiːk/`
 > * *student* `/ˈstudənt/` → `/ˈsdudənt/`