s or animals with the mineral matter of different positions。 石化可能包括已經死亡的植物或動物與含有不同成分的礦物質之間同時發生的原始物質交換。
同義 fossilization(n。 石化)
plain[plein]n。 平原 a。 清晰的;簡單的;樸素的
例句 1。 They are probably the paths taken by huge volumes of water that draining from the southern highlands into the northern plains。 大量的水可能正是經由這些路徑從南部高地流入到北方平原的。
2。 In a flat plains country; the scientist found moraines; which reminded him of the moraines found at the end of valley glaciers。 這名科學家在一個平原國家發現了堆石,這讓他想到了在冰川穀盡頭處發現的堆石。
3。 Certainly; her carelessness made a mess of this plain job。 她的粗心確實把這項簡單的工作搞砸了。
同義 grassland(n。 平原);unadorned(a。 樸素的)
planet['pl?nit]n。 行星
搭配 frozen planet 冰凍星球
例句 1。 When speaking of a terrestrial and a Jovian planet; the most obvious difference is their size。 當談到類地行星和類木行星時,它們之間最明顯的差異是尺寸不同。
2。 On Mars; all the water is contained in the permafrost layer; being locked under its surface now。 現在,火星上所有的水都包含在地表之下的永凍層中,被鎖在其地表之下。
polar['poul?r]a。(南、北)極的;磁極的;截然對立的
搭配 polar bear 北極熊;polar expedition 極地探險
例句 As the snow line; the timberline is highest in the tropics areas and lowest in the polar regions。 如同雪線一樣,樹帶界線在熱帶地區最高,在極地地區最低。
pollen['pɑ:l?n]n。 花粉
搭配 bee pollen 蜂花粉
例句 Pollinators obtain food from flowering plants; that makes the plants distribute pollen and seeds much more efficiently than just disperse them by the wind。 傳粉者從開花植物那裡獲得食物,這使植物能夠比僅靠風更加有效地傳播花粉和種子。
pond[pɑ:nd]n。 池塘
例句 In hilly regions; all through a dry summer a pond maintains a steady water level; in spite of having no streams flowing into it。 在丘陵地區,儘管並沒有溪水流入其中,池塘在整個乾涸的夏季中也能保持一個穩定的水位。
porous['p?:r?s]a。 有毛孔或氣孔的;能滲透的
例句 1。 Sedimentary rocks are porous; such as sandstones and conglomerates; and t