necessary evil
Lesser of two evils principle
/suto3/google.iconnecessary evil
/suto3/Google画像検索.iconnecessary evil
/suto3/Google定義検索.icon necessary evil
/suto3/wikipedia.iconnecessary evil
/suto3/weblio.icon necessary evil
/suto3/kotobank.icon necessary evil
/suto3/jisho.icon necessary evil