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or months or even years。 这种漂流木可能已经在海中漂流了数月,甚至数年之久。
要点 我们平时经常会碰到drift作动词的用法,但在托福阅读中出现了drift作名词的用法“漂流物;吹积物”。
droplet['drɑ:pl?t]n。 小滴;飞沫
搭配 droplet transmission 飞沫传播
例句 1。 As muddy sediments are pressed together; the gas and small oil droplets may be squeezed out of the mud; and may move into sandy layers nearby。 当泥泞的沉淀物被挤压在一起时,气体和小油滴也许会被挤出泥土之外,并渗入到附近的沙层当中。
2。 These millimeter…sized; melted silicate material droplets were cooled into spheres of glass and crystal。 这些只有几毫米大的融化硅酸盐液滴经冷却成为了玻璃或水晶球体。
elevation[?eli'vei?n]n。 提高;高度,海拔
例句 1。 With the increase of elevation; narrow and deep channels of water form throughout the marsh。 随着海拔增高而形成的窄而深的水槽遍布整个湿地。
2。 The elevation in the northern peninsula is sufficiently low for the ancient Maya to reach the water table at deep sinkholes; or at deep caves。 半岛北部的海拔足够低,这使古玛雅人可以在污水深坑或深洞里接触到地下水位。
同义 altitude(n。 海拔)
emerge[i'm?:r?]v。 显露,暴露;(从水中)出来
例句 1。 The cinema didn't emerge as a form of mass consumption at first until the technology enabled to project images on a screen in a darkened theater。 最初,电影院并没有作为一种大众消费形式出现,直到技术可以实现将图像投映到黑暗的剧院的银幕上。
2。 In recent years; some talented artists emerged as leading figures in this field。 近些年,一些有才华的艺术家作为业界领军人物出现。
engulf[in'g?lf]v。 吞没
例句 1。 When a glacier moves; the rock formations behind have been engulfed; pushed; and dragged by it。 当冰川移动时,后面的岩层将被它吞没、挤压或拖拽。
2。 Sometimes animals and plants would be preserved if they were immersed in tar or quicksand; trapped in ice; or engulfed by rapid falls of volcanic ash。 有时,动物和植物在浸入柏油或流沙、陷入冰中或是被急速倾泻而下的火山灰淹没之后得以保存下来。
同义 merge(v。 吞没)
equator[i'kweit?r]n。 赤道
例句 They could trace the growth and shrinkage of the continental glaciers; even in parts of o
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