问题描述：
一道GRE填空求大神解释
If one could don magic spectacles – with lenses that make the murky depths of the
ocean become transparent – and look back several centuries to an age before
widespread abuse of the oceans began, even the most (i) ____ observer would
quickly discover that fish were formerly much more abundant. Likewise, many now-
depleted species of marine mammals would appear (ii) ____. But without such
special glasses, the differences between past and present oceans are indeed hard to
(iii) ____.
Blank (i)
(A) casual
(B) prescient
(C) clearheaded
Blank (ii)
(D) threatened
(E) plentiful
(F) unfamiliar
Blank (iii)
(G) ignore
(H) discern
(I) dismiss
不懂啊!最好有翻译……
If one could don magic spectacles – with lenses that make the murky depths of the
ocean become transparent – and look back several centuries to an age before
widespread abuse of the oceans began, even the most (i) ____ observer would
quickly discover that fish were formerly much more abundant. Likewise, many now-
depleted species of marine mammals would appear (ii) ____. But without such
special glasses, the differences between past and present oceans are indeed hard to
(iii) ____.
Blank (i)
(A) casual
(B) prescient
(C) clearheaded
Blank (ii)
(D) threatened
(E) plentiful
(F) unfamiliar
Blank (iii)
(G) ignore
(H) discern
(I) dismiss
不懂啊!最好有翻译……
问题解答：
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