| 词汇 | sand |
| 词根词缀 | 词源： O.E. sand, from P.Gmc. *sanda- (cf. O.N. sandr, O.Fris. sond, M.Du. sant, Ger. Sand, not recorded in Gothic), from PIE base *samatha- (cf. Gk. psammos "sand," L. sabulum). Metaphoric for "innumerability" since O.E. The verb is first attested late 14c., "to sprinkle with sand," from the noun; meaning "to grind or polish with sand" is from 1858. Sandpaper is attested from 1812; sandstone is from 1660s. 词根记忆： n. 沙;(pl.)沙滩,沙地Sand is insoluble in water.沙在水中是不溶解的. |
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