diff --git a/1000-hours/sounds-of-american-english/2.2.9-h.md b/1000-hours/sounds-of-american-english/2.2.9-h.md
index 5e5fd7b3..2a49c972 100644
--- a/1000-hours/sounds-of-american-english/2.2.9-h.md
+++ b/1000-hours/sounds-of-american-english/2.2.9-h.md
@@ -6,7 +6,7 @@ No matter what language people speak, laughter sounds the same... That's because
不过有一个细节需要注意。在日常对话中，不能么正式或者速度较快的时候，h 会被 “击穿”。比如，*Did he do that?* 这句话，更可能被说成 dɪ diː duː ðæt ，而不是正式的那样 dɪd hiː duː ðæt。
-However, there's one detail to keep in mind. In everyday conversations, especially when speaking informally or quickly, the h sound can get “dropped.” For example, the sentence *Did he do that?* is more likely to be pronounced as dɪ diː duː ðæt rather than the formal one as dɪd hiː duː ðæt.
+However, there's one detail to keep in mind. In everyday conversations, especially when speaking informally or quickly, the h sound can get "dropped." For example, the sentence *Did he do that?* is more likely to be pronounced as dɪ diː duː ðæt rather than the formal one as dɪd hiː duː ðæt.
更多的例子比如：