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.
双语例句
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.
来自《简明英汉词典》
2. Deciduous trees shed their leaves in autumn.
落叶树木在秋天落叶.
来自《简明英汉词典》
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.
来自辞典例句
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.
来自辞典例句
5. Rose, a red rose for the deciduous shrub rose family.
