elegant degradation
fail-safe
fail-soft
/suto3/google.icon
elegant degradation
/suto3/Google画像検索.icon
elegant degradation
/suto3/Google定義検索.icon
elegant degradation
/suto3/wikipedia.icon
elegant degradation
/suto3/weblio.icon
elegant degradation
/suto3/kotobank.icon
elegant degradation
/suto3/jisho.icon
elegant degradation