释义 |
American elmn.(名词) American elmUlmus americana- A North American deciduous tree(Ulmus americana) having double serrate leaves and winged fruits. It is grown chiefly as an ornamental shade tree but often dies from Dutch elm disease. 美洲榆:一种北美落叶树(美洲榆) ,有双齿叶和双翼果,主要作为观赏性浓荫树,但常患荷兰榆树病而坏死
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