220'

16'

句子選自此影片 : 什麼時候水能安全飲用？ (When is water safe to drink? - Mia Nacamulli)

Take a look at the water in this glass. Refreshing, hydrating, and invaluable to your survival. Before you take a sip, though, how do you know that the water inside is free from disease-causing organisms and pollutants?
看看杯子裡的水，既乾淨、滋潤又珍貴，能維持人類基本生存。不過，在你啜飲之前，你怎麼判定水裡面有沒有有害的有機物質或者是汙染物？

學習重點
1 . refresh 恢復活力
refresh [rɪˈfreʃ] (v.) 恢復活力
fresh [frɛʃ] (adj.) 新鮮的
2 . invaluable 無法估價的
invaluable [ɪnˈvæljʊəbl] (adj.) 無法估價的
valuable [ˈvæljʊəbl] (adj.) 很值錢的
3 . survival 生存
survival [sɚˋvaɪv] (n.) 生存
survive [sɚˋvaɪv] (v.) 生存
4 . pollutant 污染物
pollutant [pəˋlutənt] (n.) 污染物
pollute [pəˋlut] (v.) 污染
pollution [pəˋluʃən] (n.) 污染