diff --git a/1000-hours/sounds-of-american-english/2.1.5-ə.md b/1000-hours/sounds-of-american-english/2.1.5-ə.md
index 8ac6336c..e073a10e 100644
--- a/1000-hours/sounds-of-american-english/2.1.5-ə.md
+++ b/1000-hours/sounds-of-american-english/2.1.5-ə.md
@@ -28,4 +28,4 @@ It should be noted, in American English pronunciation, the tongue tip *never* to
注意，在连贯的自然语音中，很多非重音音节的元音，都有被简化成 ə（*schwa*）的倾向，尤其是 ɪ。比如，*individual*, ˌɪndəˈvɪdʒuəl，实际上会被读作 ˌɪndəˈvɪdʒəwəl —— u 也变成了 ə，而后 u 和 ə 之间有个加音 w…… 事实上，现在已经有很多词典干脆直接标注成了后者。
-Keep in mind that in fluent, natural speech, many unstressed vowel sounds in syllables are often simplified to ə (*schwa*), especially ɪ. For instance, *individual* ˌɪndɪˈvɪdʒjʊəl, is often actually pronounced as ˌɪndəˈvɪdʒəwəl - u also becomes ə, and there's a added w sound between u and ə… In fact, many dictionaries now straightforwardly use the latter phonetic annotation.
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+Keep in mind that in fluent, natural speech, many unstressed vowel sounds in syllables are often simplified to ə (*schwa*), especially ɪ. For instance, *individual* ˌɪndɪˈvɪdʒjʊəl, is often actually pronounced as ˌɪndəˈvɪdʒəwəl - u also becomes ə, and there's a added w sound between u and ə… In fact, many dictionaries now straightforwardly use the latter phonetic annotation.