to boost

https://tts.langeek.co/read?text=dG8gYm9vc3Q&hash=aa25b69b4da1654e6a6f404063ff86b0f7056214&lang=en&cache-only=0&driver=googletts&accent=US

Here you will find the vocabulary from Unit 3 - 3C in the Insight Advanced coursebook, such as "manipulate", "outstrip", "inflation", etc.