Contrastive linguistics is when we compare two languages to see how they are different from each other. Imagine you have two friends who speak different languages, like one speaks English and the other speaks Spanish. When they talk to each other, they might have trouble understanding each other because their languages are different. That's where contrastive linguistics comes in! It helps us understand how the languages are different so we can help our friends communicate better.
We can look at things like grammar, vocabulary, and pronunciation to see how the languages are different. For example, in English we say "I am happy" but in Spanish they say "Estoy feliz." That's because the grammar rules are different in each language.
So, contrastive linguistics is like being a language detective. We look at two languages and figure out how they are unique from each other so we can help people communicate better.