alluvial land的用法和樣例：
例句
- Because the region around New Orleans is composed of alluvial soil, there is no paving material close at hand.
新奧爾良一帶多為沖積土，因而附近沒(méi)有可用的鋪路石材。 - Yet the soft alluvial sediment of Tokyo's low-lying areas, it is now understood, is vulnerable to liquefaction, in which violent movement turns the soil to quicksand.
人們現在意識到了，東京的一些地勢低的地方，松軟的沖積土很容易受到液化作用的影響，強烈的運動(dòng)會(huì )使土壤成為流沙。
