Curious why the pinyin for some characters is written with an umlaut which vanishes in similar-sounding words? Is there really a difference in the way we should pronounce these sounds? The answer to these questions and more is revealed in our pinyin practice lesson for today, which will take you on a whirlwind tour through a maze of similar sounding words.For extra feedback, we've enabled our recording hotline for this lesson to give you an opportunity to get personal feedback on your pronunciation. If you're a premium subscriber call us using the custom PIN number that you'll find on this lesson's text page. Practice reading our sample sentences for this lesson and one of our teachers will get back to you shortly with one-on-one feedback on your pronunciation. And doubtless compliments too.