関連ワード:
is it too late to become fluent in a language what age is too late to become fluent in a language is it too late to learn a language at 30 is it too late to learn a language at 18 is it too late to learn a language at 20 is it too late to learn a language at 16 is it too late to learn a language at 25 is it too late to learn a language at 21 is it too late to learn a language at 40 can you become fluent in a language at any age
