to believe in

https://tts.langeek.co/read?text=dG8gYmVsaWV2ZSBpbg&hash=7343b0364362644ed0e44364266c89c9bc77ab2a&lang=en&cache-only=0&driver=googletts

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.