The scientific investigation team found many mammoth fossils in the forest. 科考人員在森林中發(fā)現了很多毛象的尸骨化石。
These clouds also carry smoke from forest fires, soot from fossil fuels, calcium from deserts, and minute grains of sea salt. 這些云層同時(shí)還攜帶森林火災的煙霧，化石燃料產(chǎn)生的煙塵以及海鹽的微小顆粒。
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