这些山丘是冰川作用形成的。
我们这些孩子对外部世界所能形成的认识是非常模糊的。
The notions we children were able to form of the great world beyond were exceedingly nebulous.
它们是在岩浆热点上形成的。
这是理解行星形成的关键。
它们是在地中海盆地重新注满水后形成的。
They formed after the Mediterranean basin refilled with water.
难怪印度传说中魔鬼塔是由超自然力量形成的。
Small wonder that an Indian legend described Devils Tower as being formed by supernatural powers.
科学家们还不清楚这个过程是如何阻止冰晶形成的。
Scientists do not know exactly how this process prevents ice crystal formation.
关于行星是如何形成的，还有一种更为激烈的理论。
他突然想到，烟火也许可以有效地展现恒星是如何形成的。
It occurred to him that fireworks might provide an effective way of demonstrating how stars were formed.
相反，它们是盾状火山——由熔岩形成的宽而倾斜的滑梯。
Instead, they are shield volcanoes — volcanoes with broad, sloping slides formed by molten rock.
相反，它们是盾状火山——由熔融岩石形成的宽而倾斜的滑坡。
Instead, they are shield volcanoes—volcanoes with broad, sloping slides formed by molten rock.
工具性联系是我们为了实现某种目标而与他人合作时形成的社会联系。
Instrumental ties are social links formed when we cooperate with other people to achieve some goal.
科学家对宇宙是怎样形成的有分歧。
极地涡旋是冬季风形成的一个风系。
更多熟悉的地形是由地表侵蚀形成的。
More familiar landscapes have been sculpted by surface erosion.
人的品德不是由遗传而是由环境形成的。
The moral characters of men are formed not by heredity but by environment.
他的出现应该能填补过去几天中形成的权力空缺。
His presence should fill the power vacuum that has been developing over the past few days.
沃尔特在口袋里摸索，一个他以前抽烟时形成的习惯性动作。
当我到达时，穹顶和尖塔形成的泛着微光的空中轮廓线铭刻在我的记忆中。
As I arrived, the shimmering skyline of domes and minarets was imprinted on my memory.
过剩的降雪是冰川形成的必要条件。
儿童的自我意识是逐渐形成的。
人们仍然不知道宇宙是如何形成的。
这些产品并不是偶然形成的。
有一些在停放着的汽车形成的阴影处休息。
季节是由地轴的北端指向或远离太阳形成的。
The seasons are made by the northern end of the axis pointing towards or away from the sun.
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