Or were they our planet's first warning that the climate of the 21st Century will differ materially from what we've seen in the past？
Or were they our planet's first warning that the climate of the 21st Century will differ materially from what we've seen in the past？
抑或是对我们星球的首个警告:21世纪的气候会否与我们过去所见大大不同？」