long-legged aquatic insect having the front legs fitted for seizing and holding prey and the abdomen extended by a long breathing tube
例句与用法
1.
Water scorpions are poor swimmers and usually crawl on aquatic vegetation or below the water . when threatened they often feign death 水蝎子不太会游泳，经常在水生植物上或水下爬行,它们受到威胁时会装死。
2.
According to whyte ' s analysis of the fossil , the creature was a six - legged water scorpion measuring 5 feet long and 3 feet wide 根据怀特的分析，这一动物为长有6条腿的水生蝎子，体长大约5英尺1 . 6米，体宽约3英尺1米。
3.
A scientist in scotland has discovered tracks made by a huge water scorpion 330 million years ago , the first of the species ever discovered and the only evidence showing it could survive outside of the water , according to the journal nature ' s edition to be published thursday 英国学者日前在苏格兰境内发现了3 . 3亿年前，一只巨大的水蝎water scorpion在爬行时留下的痕迹。这是人们发现的首个，同时也是惟一一个证明该物种在脱离水的地方也能生存的证据。
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