How to pronounce 'pernicious' The director general of the Worl | BBC Learning English
How to pronounce 'pernicious' The director general of the World Health Organization has said air pollution is "one of the most pernicious threats" facing global public health today and is on a much bigger scale than HIV or Ebola. How do we pronounce the word pernicious? Watch the video and find out. #Pronunciation @BBCLearningEnglish98 @EnglishDL94