Elementary | Tone Rule: Changes for 'bu'

While the writer attempts to interject occasional humor into these intros, he knows there's nothing funny about the word ‘bu’, especially when you factor in the rules involved. Sorry, you don't know the rules? Oh, you'll thank us for this podcast that takes away the mystery of the changeable ‘bu’ in Mandarin Chinese, then. Episode link: https://www.chinesepod.com/0453