英文正文
先顺着英文往下读。想听的时候点开任一句，听完继续读就好。
This is a short vowel元音 sound. It's pronounced /ə/. And to make this sound, you just relax使松弛 your mouth. You try尝试, listen and repeat. /ə/. And again. /ə/. In fact事实, this is a very common普通的 sound in English. And in many grammar语法 words, it's the only唯一的 vowel元音的 sound, such这样的 as /ə/, /ð/, /əv/, /ðət/. Let's practice these. Listen and repeat. /ə/, /ð/, /əv/, /ðət/. Now you also get this sound in many words of more than one syllable音节. Listen. About, common普通的, standard标准的, butter.
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