| 单词 | 蛛形纲 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔arachnid〕Spiders, scorpions, mites, and ticks are arachnids.蜘蛛、蝎子、螨和蝉都是蛛形纲动物。韦氏高阶〔cephalothorax〕The anterior section of arachnids and many crustaceans, consisting of the fused head and thorax.头胸部：蛛形纲动物和许多甲壳纲动物身体前部头胸合一的部分美国传统〔chelicera〕Either of the first pair of fanglike appendages near the mouth of an arachnid, such as a spider, often modified for grasping and piercing.螯肢：蜘蛛等蛛形纲动物在嘴边的第一对肢状附属物，常用来抓握和刺穿物体美国传统 |
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