intrinsic function
組み込み関数
https://source.unsplash.com/featured/?intrinsic-function#.png
/suto3/google.iconintrinsic function
/suto3/Google画像検索.iconintrinsic function
/suto3/Google定義検索.icon intrinsic function
/suto3/wikipedia.iconintrinsic function
/suto3/weblio.icon intrinsic function
/suto3/kotobank.icon intrinsic function
/suto3/jisho.icon intrinsic function