根据一项新的基因研究，之前并不为人所知的人类物种——丹尼索万人——可能在亚洲游荡了数千年，大约偶尔与像你和我一样的人类杂交。
A previously unknown kind of human—the Denisovans—likely roamed Asia for thousands of years, probably interbreeding occasionally with humans like you and me, according to a new genetic study.
为了评估志愿者成长环境的影响，研究者根据志愿者15岁之前在大城市，城镇或者农村生活时间的长短，为每个人制定了一个大城市指数。
To assess any effect of where the volunteers grew up, the researchers assigned each an "urbanicity" score based on how many years they'd spent by age 15 in a city, town or rural area.
根据之前的研究，SP被认为会引起发炎，也会被脑部的神经组织用来帮助运输白细胞到身体受伤的部位。
From previous studies, it's known that SP causes inflammation and is used by the brain's neurons to help send white blood cells to injured areas of the body.
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