[Story] After a moment of hesitation, the scientist made a connection between pollution and extinction. He realized that without protection and reflection on our actions, the Earths future was at stake.

[参考翻译] 经过片刻的犹豫，科学家将污染和灭绝联系起来。他意识到，如果不加以保护并反思我们的行为，地球的未来将岌岌可危。

[Words]

  1. connection [kəˈnɛkʃən] n 连接，联系
  2. extinction [ɪkˈstɪŋkʃən] n 灭绝，消失
  3. hesitation [ˌhɛzɪˈteɪʃən] n 犹豫，迟疑
  4. pollution [pəˈluːʃən] n 污染
  5. protection [prəˈtɛkʃən] n 保护
  6. reflection [rɪˈflɛkʃən] n 反思，反映