to believe in

https://tts.langeek.co/read?text=dG8gYmVsaWV2ZSBpbg&hash=c9cf3164bf92c3d62c4a6de3b76324168d3ef2b2&lang=en&cache-only=0&driver=googletts&accent=US

Here you will find the vocabulary from Unit 10 Lesson C in the Four Corners 4 coursebook, such as "rely on", "participate", "believe in", etc.