4周搞定2000+托福核心词
allay = al(临近) + lay(放置) = 快放下了→缓和
allocate = al(临近) + loc(地方) + ate(使) = 不断送给地方→分配
congenial = con(共同) + gen(产生) + ial(形容词) = 产生共同[兴趣]→情投意合的
essentially = ese(实质) + ent(…的) + ial(形容词) = 本质上
流到近处来→冲积的
alluvial
常考释义
adj. 冲积的；淤积的【地质】
The portion of the crater where Curiosity will land has an alluvial fan likely formed by water-carried sediments.
好奇号所要降落的陨坑处有一块很可能是由水流沉积物所形成的冲积扇。
The water cuts the alluvial banks of the " lower " river into deep horseshoe curves.
河水把下游那些冲积的河岸冲成很深的马蹄形曲线。
Alluvial soils usually grow the best crops.
淤积土壤通常能长出最好的庄稼。
A stream deposits its sediment in three environments: Alluvial fans and deltas form where stream gradient (angle of incline) suddenly decreases as a stream enters a flat plain, a lake, or the sea; floodplain deposits accumulate on a floodplain adjacent to the stream channel; and channel deposits form in the stream channel itself.
一条河流会在三种环境下发生沉淀：在河流进入平原、湖泊或大海的时候，河流坡度（倾斜的角度）会突然下降，在那些地方会形成冲积扇和三角洲；河漫滩沉积物会堆积在河道附近的漫滩上；河流内部也会形成河道沉积物。
来源于：阅读OFFICIAL52 P1As a result, it deposits most of its sediment in a fan-shaped mound called an alluvial fan.
结果，它会把大部分的泥沙沉淀下来，形成一个扇形土丘，被称为冲积扇。
来源于：阅读OFFICIAL52 P1Alluvial fans are common in many arid and semiarid mountainous regions.
冲积扇在许多干旱、半干旱的山区很常见。
来源于：阅读OFFICIAL52 P1As was the case with the cities of Hierakonpolis and Elkab, the combination within the same area of both desert pasturage and alluvial arable land (land suitable for growing crops) was a particularly attractive one for early settlement; this combination no doubt contributed to the prosperity of the Memphis region from early predynastic times.
以Hierakonpolis和Elkab城为例，沙漠牧场和冲积耕地（适合耕种农作物的土地）在同一片区域的结合，使这片地区成为一个特别有吸引力的早期定居点；这样的组合无疑促进了前王朝时代早期孟斐斯地区的繁荣。
来源于：阅读OFFICIAL51 P1The West had plenty of attractions: the alluvial river bottoms, the fecund soils of the rolling forest lands, the black loams of the prairies were tempting to New England farmers working their rocky, sterile land and to southeastern farmers plagued with soil depletion and erosion.
西部吸引人的地方很多：冲积河床、绵延起伏的林地下的肥沃的土壤、大草原上的黑土，这些都吸引着在布满岩石又贫瘠的土地上劳作的新英格兰农民和饱受土壤损耗和流失困扰的东南部农民。
来源于：阅读OFFICIAL20 P1n. （尤指含金的）冲积层，冲积矿床【地质】
The alluvial of Linhuan mine area in Huaibei consists of tour aquifers with three water resisting layers.
淮北临涣矿区的冲积层由三个隔水层和四个含水层组成。
alluvial fan
冲积扇；扇形地；扇状地
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