记忆方法
将“citrus”记忆为“city + us”，想象这个“city”里的“us”都是“橘子”、“柠檬”等柑橘类水果的果实，这样有助于记住这个词与柑橘类水果的关系。
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中文词源
citrus 柑橘
来自拉丁语citrus,橘树，柠檬树。进一步词源不详，可能来自cedar,雪松。
英语词源
- citrus
-
citrus: [19] Latin citrus signified the ‘citron’, a tree (Citrus medica) of Asian origin with a lemon-like fruit which was the earliest of the citrus fruits to become known in the West. Like the fruit itself, the name is presumably of Eastern origin – perhaps from a non-Indo- European language from around the eastern end of the Himalayas. Citron is a French derivative of citrus, coined on the model of French limon ‘lemon’; it was borrowed into English in the 16th century.
- citrus (adj.)
- 1825, from Modern Latin genus name, from Latin citrus "citron tree," name of an African tree with aromatic wood and lemon-like fruit, the first citrus fruit to become available in the West. The name, like the tree, is probably of Asiatic origin [OED]. But Klein traces it to Greek kedros "cedar," and writes that the change of dr into tr shows that the word came from Greek into Latin through the medium of the Etruscans. As a noun, "tree of the genus Citrus," from 1885.
权威例句
- 1. Olive groves, grapes, and citrus fruits grow in profusion.
- 橄榄、葡萄和柑橘类水果产量丰富。
- 2. The frost last week was a great calamity to the citrus industry.
- 上周的霜冻对柑橘种植业是一场大灾难.
- 3. Citrus growers were cautioned to protect the fruit from frost.
- 种柑橘者受到防霜保橘的劝告.
- 4. Phylogenetic relationships among 18 accessions belonging to Fortunella and Citrus were investigated by using SSR markers.
- 用SSR标记分析了金柑属(Fortunella)及柑橘属(Citrus)植物的亲缘关系.
- 5. Southern Texas and Florida are important producers of citrus fruits.
- 得克萨斯州南部和佛罗里达州是重要的柑桔类水果产地.