YOU SAID:

People who speak multiple languages are proved to be smarter.

INTO JAPANESE

複数の言語を話す人々は賢いことが証明されています。

BACK INTO ENGLISH

People who speak multiple languages have proven to be clever.

INTO JAPANESE

複数の言語を話す人々は賢いことが証明されています。

BACK INTO ENGLISH

People who speak multiple languages have proven to be clever.