标准美语发音的13个秘诀 CD 3 Track 8

 

Exercise 3-3: Vowel-Sound Differentiation¹    CD 3 Track 8 

Here we will read down from 1 to 24, thenwe will read each row across. Give the [ā] sound a clear double sound [ε+ ee]. Also, the [o] is a longer sound than you might be expecting. Add the full ooh sound after each "o."

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1 differentiation   

n.区别，区分

参考例句：

• There can be no differentiation without contrast. 有比较才有差别。
• The operation that is the inverse of differentiation is called integration. 与微分相反的运算叫做积分。