They found that when you learn a language as a child, as a two-year-old, you learn it with a certain part of your brain, and when you learn a language as an adult -- for example, if I wanted to learn Japanese right now — a completely different part of my brain is used.
人間は言語を 幼少期に学ぶとき 脳のとある部分で習得します 一方 大人として学ぶとき 例えば 私が今から 日本語を勉強するとなると 脳のまったく別の部分で習得します