90秒で分かる国債と個人の借金との違い

国の借金が増えすぎて、国が破綻してしまう!! けれど、個人の借金と国の借金は同じものではありません。日本の国債について90秒で学びましょう!
Learn letter writing etiquette in Japanese; onchu and sama in 90 sec Learn letter writing etiquette in Japanese; onchu and sama in 90 sec
Learn about a Japanese Castle (Shiro) in 90 seconds Learn about a Japanese Castle (Shiro) in 90 seconds
90 seconds to learn common Kansai-ben words! 90 seconds to learn common Kansai-ben words!
90 seconds to learn about eyestrain and short-sighted 90 seconds to learn about eyestrain and short-sighted