| 单词 | water boatman |
| 释义 | water boatman water boatman n.（名词）Any of various aquatic insects of the families Corixidae and Notonectidae, having long oarlike hind legs adapted for swimming.划蝽，水蝽：几种水生划蝽科和仰泳蝽科昆虫之任一种，有适于游泳的长的桨状后腿 |
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