1. Because Australia's native people and black Africans share such superficial characteristics as skin color and body shape, they were widely assumed to be closely related.
    因为澳洲土著和非洲黑人之间有一些共同的外表特征，如肤色、体型等，所以普遍认为他们有较近的亲缘关系。

2. We are so familiar with the fact that man ages, that people have for years assumed that the process of losing vigour with time, of becoming more likely to die the older we get, was something self-evident,
    我们对人总是要衰老的现象并不陌生，多年来就已认识到。生命随着时间流失而丧失活力，人随着年龄的增长而接近死亡，这是不言而喻的，

3. The open sea was deep and mysterious, and anyone who gave more than a passing thought to the bottom confines of the oceans probably assumed that the sea bed was flat.
    无边无际的海洋深邃而又神秘，凡是稍稍想过大海海底的人大概都会认为海底是平坦的。

4. They have also assumed that all animals, and probably other organisms such as trees, or even the universe itself, must in the nature of things ´wear out´.
    人们不但认识到所有的动物，大概也认识到所有的有机物。如树木，甚至宇宙本身，从事物的本质上来说都会"磨损掉"。

5. Up to now, historians have assumed that calendars came into being with the advent of agriculture,
    历史学家迄今认为日历是随农业的问世而出现的，

6. I assumed because I didn't believe in violence, because I wasn't violent, I wouldn't be affected by violence. I believed my belief in the best of human nature could make it real.
    我应该把枪从住所带到车上，但是我没有。这支枪的功能，以及使用它的目的比用它所能阻止的事件更让我感到恐惧。

7. It is assumed that they are of the same religion and social level.
    一般认为双方都应有同一宗教信仰，属于同一社会阶层。

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