The diphthongs in this dialect are quite unique.

这个方言中的双元音非常独特。

Monophthongs are simpler to pronounce than diphthongs.

单元音比双元音更容易发音。

Children often learn monophthongs before diphthongs.

孩子们通常先学习单元音，然后学习双元音。

This linguistics course covers monophthongs and diphthongs.

这个语言学课程涵盖了单元音和双元音。

Linguists study diphthongs to understand language evolution.

语言学家研究双元音以了解语言的演变。

Many English learners struggle with pronouncing diphthongs correctly.

许多英语学习者在正确发音双元音时感到困难。

Spanish also has several diphthongs that can be tricky for beginners.

西班牙语中也有几个对初学者来说很难的双元音。

The word coin contains one of the most common diphthongs in English.

“coin（硬币）”这个词包含了英语中最常见的双元音之一。

Diphthongs are complex ions of vowels.

双元音是元音的组合.

And then you slur by dropping initial letters and diphthongs.

有时你又把单词开头的辅音和双元音含糊掉。