记忆方法
将“deciduous”分解为“de”和“ciduous”，其中“de”可以联想到减少，而“ciduous”可以想象为“cut down”（砍倒）。想象树叶因为冬季而逐渐减少，最终从树上“砍倒”下来，这样就记住了“deciduous”表示“落叶的，一年生的”。
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中文词源
deciduous 落叶的
de-, 向下。-cid, 掉落，词源同case, accident. 即掉落的。
英语词源
- deciduous
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deciduous: see decay
- deciduous (adj.)
- 1680s, from Latin deciduus "that which falls off," from decidere "to fall off," from de- "down" (see de-) + cadere "to fall" (see case (n.1)). Originally with reference to leaves, petals, teeth, etc.; specific sense of "trees whose leaves fall off" (opposed to evergreen) is from 1778.
权威例句
- 1. Overgrown deciduous shrubs can be cut back at this time of year.
- 过于繁茂的落叶灌木可以在每年的这个时候修剪.
- 2. Deciduous trees shed their leaves in autumn.
- 落叶树木在秋天落叶.
- 3. Fusions were common between strains from deciduous hosts or coniferous hosts.
- 来自阔叶树或针叶树寄生的菌系间融合是普遍的.
- 4. Regional ecosystem types, such as grass land, desert, and deciduous forest, are called biomes.
- 地区的生态系统, 例如草原 、 荒漠和落叶林又被称为生物带.
- 5. Rose, a red rose for the deciduous shrub rose family.
- 玫瑰, 红的玫瑰为落叶灌木蔷薇科.