How Many Words Should You Look Up in a Dictionary?

Reading books is good for vocabulary, but it's also good for grammar. This process happens when you read in another language or when you listen in another language. Your brain starts to recognize grammatical structures and patterns. So if you've already looked up two vocabulary words that you didn't understand on that page, you can't look up any more. You just have to read and b ok with not understanding some of the other words on that page.