| 单词 | alligator weed |
| 释义 | alligator weed alligator weed n.（名词）An aquatic South American perennial plant(Alternanthera philoxeroides) having opposite, lance-shaped leaves and tight clusters of small whitish flowers. It is a mat-forming weed in warm, freshwater habitats, such as the southeast United States. 螃蜞菊：一种南美洲水生常绿植物（螃蜞菊） ，具有对生的矛状叶和排列紧凑的白色小花簇。这种象鞋垫的水草生长在温暖的淡水地带，如美国东南部 |
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