early warning
早期警戒
early warning system
/suto3/google.iconearly warning
/suto3/Google画像検索.iconearly warning
/suto3/Google定義検索.icon early warning
/suto3/wikipedia.iconearly warning
/suto3/weblio.icon early warning
/suto3/kotobank.icon early warning
/suto3/jisho.icon early warning