a way of speaking or writing that makes someone or something sound bigger, better, more, etc. than they are

The blurb on the back of the book was full of the usual hyperbole - "enthralling", "fascinating", and so on. 这本书封底的广告宣传里满是那些司空见惯的夸张词语：“引人入胜”、“令人着迷”等等。