alluvial

英 [?'l(j)u?v??l] 美[?'l?v??l]

IELTS暢通詞匯

alluvial 沖積的

前綴al-同ad-. 詞根luv, 流，沖刷，見(jiàn)lava,巖漿.

alluvial: alluvial: [19] Alluvial material is material that has been washed down and deposited by running water. Hence the term; for its ultimate source, Latin lavere (a variant of lavāre, which produced English latrine, laundry, lava, lavatory, lavish, and lotion), meant ‘wash’. Addition of the prefix ad- ‘to’ changed lavere to luere, giving alluere ‘wash against’.

Derived from this were the noun alluviō (source of the English technical term alluvion ‘a(chǎn)lluvium’) and the adjective alluvius, whose neuter form alluvium became a noun meaning ‘material deposited by running water’. English adopted alluvium in the 17th century, and created the adjective alluvial from it in the 19th century. If Latin alluere meant ‘wash against’, abluere meant ‘wash away’.

Its noun form was ablūtiō, which English acquired as ablution in the 14th century.
=> ablution, latrine, laundry, lavatory, lavish, lotion
alluvial (adj.): 1802, from Latin alluvius "alluvial" (see alluvium) + -al (1).

2. Thus, alluvial channel flows are simultaneously sculptor and sculpture.: 這樣, 沖積河槽水流既是塑造者,同時(shí)又是被塑造者.

3. The water cuts the alluvial banks of the " lower " river into deep horseshoe curves.: 河水把下游那些沖積的河岸沖成很深的馬蹄形曲線.

4. Bangkok is surrounded by a vast, damp, alluvial plain, crisscrossed by a network of klong,.: 曼谷為一個(gè)廣闊潮濕的沖積平原所環(huán)繞, 有縱橫交錯(cuò)的運(yùn)河網(wǎng).

5. Upward - fining channels may occur in a wide range of environments, from submarine canyon to alluvial fan.: 向上變細(xì)的水道可以出現(xiàn)在好多種環(huán)境中, 從海底峽谷到?jīng)_積扇.