proliferation (拡散): The proliferation of nuclear weapons is a global concern. (核兵器の拡散は世界的な懸念事項です) - 試験に出る! 英単語検索辞書

proliferation (拡散): The proliferation of nuclear weapons is a global concern. (核兵器の拡散は世界的な懸念事項です)

The proliferation of nuclear weapons is a global concern.