说到《灭绝边缘的大象》一书所有的缺点，虽说它涉及到的主题鲜为人知、引人入胜，但是发现书中缺少事实依据，充斥着主观意见，这令人失望至极。

For all its faults, Elephants on the Edge deals with a fascinating and little-understood subject, which makes it doubly disappointing to find it so devoid of facts and overstuffed with opinion.

youdao