Lesson 27 - Vowels ( ໍ , ອ, ເ າະ) 2018-05-12 · 30 words · 1 minute read language Lesson 27 - Vowels ( ໍ , ອ, ເ າະ) Below: Use the audio and pdf together. Your browser does not support the audio element. This browser does not support PDFs. Please download the PDF to view it: Download PDF. Older Lesson 26 - Vowels ( ເ ີ , ເ ິ ) Newer Lesson 28 - Vowels (າຍ, ຳ)