1. That is, anywhere from 250 billion to 500 billion "earths". 也就是处在2500亿年到5000亿年间的“地球”。
2. Scientists have long suspected that several factors lead to greater temperature swings at Earths polar regions than elsewhere. 长期以来,科学家们一直怀疑有几个因素导致了地球极地地区比其他地区更大的温度波动。
3. Beryllium difluoride is very soluble in water, unlike the other alkaline earths. 铍二氟化物极易溶于水,与其它碱土不同。
4. Right now, global growth is using about 1.5 Earths. 目前,全球增长正在使用约1.5个地球。
5. We find more Earths, we find more in the habitable zone. 我们会发现更多的“地球”,我们会在适合居住的地带找到更多行星。