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例句 In the fourteenth century; political developments cut Europe's overland trade routes; with which Europe had important and highly profitable mercial ties since the twelfth century。 14世纪,政治的发展切断了欧洲的陆上商路,而这条商路自12世纪以来为欧洲建立了重要的高利润商业纽带。
overlie[?ouv?r'lai]v。 压在…上面;盖得使窒息
例句 In lowland country; almost any spots on the ground might overlie what was once the bed of a river that had been buried by soil。 在低地国家,几乎地上的任何一个地点下面都可能曾经是某条被土壤掩盖的河的河床。
pebble['pebl]n。 小圆石,鹅卵石
例句 This example is made up of pebbles of gypsum and fragments of volcanic rock。 这个样品是由石膏和火山岩碎片组成的。
pellet['pelit]n。 小团;小药丸;小弹丸
例句 When the ice pellets fall; the much smaller ice crystals in the center of the cloud may be struck by them。 当小冰丸落下的时候,云层中间那些更小的冰晶或许会被它们击中。
要点 …let这个后缀表示“小”,比如:booklet“小册子”,streamlet“小溪”等。在阅读中看到带有这个后缀的单词时,可以以此为依据猜测词义。
penetrate['pen?treit]v。 刺穿;渗透;洞察
例句 1。 Some butterflies move into spots of sunlight that have penetrated the forest floor; displaying their beautifully patterned wings through opening and closing in the bright spotlights。 一些蝴蝶飞入穿过森林中的树木照射在地面上的光斑,在光亮里忽闪着展示它们带有图案的美丽翅膀。
2。 In a microwave oven; radiation penetrates food; and then they are absorbed primarily by water molecules; causing heat to spread through the food。 在微波炉中,辐射穿透食物,然后主要被水分子吸收,这样可以使热量在食物中扩散。
同义 pierce(v。 刺穿);apperceive(v。 洞察)
peninsula[p?'nins?l?]n。 半岛
例句 The lakes on the peninsula is the habitat of various kinds of wildlife。 这个半岛上的湖是多种野生动物的栖息地。
同义 byland(n。 半岛)
permeable['p?:rmi?bl]a。 可渗透的,有浸透性的
例句 A rock is able to be neither porous nor permeable。 岩石既没有气孔,也没有渗透性。
petrifaction[?petri'f?k??n]n。 石化;惊呆
例句 Petrifaction may contain a simultaneous exchange of the original substance of dead plant