duck·weed 
(dŭkwēd′)
(dŭkwēd′)n.
Any of various small, free-floating, stemless aquatic flowering plants of the genus Lemna and several related genera, growing in dense colonies on the surface of quiet water.
| 单词 | duckweed |
| 释义 | duck·weed (dŭkwēd′)n. Any of various small, free-floating, stemless aquatic flowering plants of the genus Lemna and several related genera, growing in dense colonies on the surface of quiet water. |
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