natural

https://tts.langeek.co/read?text=bmF0dXJhbA&hash=cf732dd4fedb6f26ab9f3a04be7546b108cbef27&lang=en&cache-only=0

Here you will find the vocabulary from Unit 10 - Lesson 3 in the Top Notch 3B coursebook, such as "valley", "canyon", "extraordinary", etc.