rationale
理論的根拠
rationality
/suto3/google.iconrationale
/suto3/Google画像検索.iconrationale
/suto3/Google定義検索.icon rationale
/suto3/wikipedia.iconrationale
/suto3/weblio.icon rationale
/suto3/kotobank.icon rationale
/suto3/jisho.icon rationale