| 单词 | notonectidae |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔backswimmer〕Any of various aquatic bugs of the family Notonectidae that swim on their backs by means of broadened, oarlike hind legs.仰泳蝽：一种属于松藻虫科的水生虫类，用它们宽阔的、桨状的后腿在水上仰泳美国传统〔water boatman〕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美国传统 |
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