dì zhì xué jiā / tōng guò / chén jī wù / zhōng / de / huā fěn / yán jiū / quán xīn jì / yǐ lái / de / qì hòu / biàn huà

地质学家通过沉积物中的花粉，研究全新纪以来的气候变化。

Geologists study climate change since the Holocene by examining pollen preserved in sediments.