Year 2000 problem
2000年問題
/suto3/google.iconYear 2000 problem
/suto3/Google画像検索.iconYear 2000 problem
/suto3/Google定義検索.icon Year 2000 problem
/suto3/wikipedia.iconYear 2000 problem
/suto3/weblio.icon Year 2000 problem
/suto3/kotobank.icon Year 2000 problem
/suto3/jisho.icon Year 2000 problem