1. Making quantitative distinctions is not an inborn skill. 区分数量并不是一项天生的技能。
2. Distinctions between exotic and native species are artificial. 外来物种和本地物种的区分是人为的。
3. Such seemingly straightforward distinctions become blurry through numberless eyes. 这种看似直接的区别在没有数字概念的人的眼中变得模糊。
4. We should keep these distinctions in mind when we research people's living conditions either in the developing or the developed world. 不管我们是研究发展中国家还是发达国家人民的生活条件,我们都应该记住这些区别。
5. We should keep these distinctions in mind when we research people's living conditions, either in the developing or the developed world. 不管我们是研究发展中国家还是发达国家人民的生活条件,我们都应该记住这些区别。