improve

/ɪm'pruːv/　verb

★ to become better than before; to make something/somebody better than before

improve myself

I'm a kind of person who wants to improve myself, such as "marathon", "swimming" and also "English".

improve significantly/dramatically

Every day running helps me improve significantly.

My quality of life has improved dramatically since I started studying English.

improve quality of my life

It helps to improve the quality of my life.

significantly　ｼｸﾞニﾌｨｶﾝﾄﾘｰ  adv)かなり･著しく･はっきりと

dramatically   ﾄﾞﾗマﾃｨｶﾘｰ     adv)劇的に

intern

 intern ｲﾝタｰｧﾝ  

n)実習生･見習い　v)インターンとして勤務する･研修する

an intern

intercultual

South Africa

Germany is a place where many cultures meet, becoming the second country in the world with the most migration, and the difficulties that the country goes through in this process of becoming a fully intercultural country.

On the other hand, 

Japan is thought of as a racially homogeneous nation.

Anything interesting discoveries about Japan？