rift］v。 漂流 n。 漂流；漂泊；傾向
搭配 continental drift 大陸漂移
例句 1。 After analyzing the sediments of marine； geologists learned that there were many shorter and regular cycles of glaciation and deglaciation than they had learned from the glacial drift of the continents alone。 經過分析海洋沉澱物質之後，地質學家們認識到與他們單獨從大陸冰川漂移中得知的相比，還有更多更短的週期性的冰川形成和消失。
2。 Wind studies and puter simulations suggest that drifting canoes would have been the most impossible measures of crossing the ocean。 關於風力的研究以及計算機模擬實驗顯示，漂流獨木舟最不可能是橫渡海洋的工具。
3。 This kind of drift wood could have been drifting in the ocean currents for months or even years。 這種漂流木可能已經在海中漂流了數月，甚至數年之久。
要點 我們平時經常會碰到drift作動詞的用法，但在託福閱讀中出現了drift作名詞的用法“漂流物；吹積物”。
droplet［'drɑ：pl？t］n。 小滴；飛沫
搭配 droplet transmission 飛沫傳播
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。 當泥濘的沉澱物被擠壓在一起時，氣體和小油滴也許會被擠出泥土之外，並滲入到附近的沙層當中。
2。 These millimeter…sized； melted silicate material droplets were cooled into spheres of glass and crystal。 這些只有幾毫米大的融化矽酸鹽液滴經冷卻成為了玻璃或水晶球體。
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。 隨著海拔增高而形成的窄而深的水槽遍佈整個溼地。
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。 半島北部的海拔足夠低，這使古瑪雅人可以在汙水深坑或深洞裡接觸到地下水位。
同義