TPO 32L Copper Basin - 英檢

請問在 TPO 32L 第三個 Lecture 有題是問

what does the professor imply when he mentions an Olympic whitewater

kayaking competition?


請問我聽原句相關的是這兩句

Alough I should mention that by 1966, the water in one of the rivers flowing

through the basin was clean enough that it was the site of the Olympic

whitewater kayaking competition.

And that river is still used now for recreation


請問這樣怎麼推論到正確答案

That a successful reclamation of the Copper Basin may be possible


請版上練習過的高手解惑了

謝謝！

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