| 单词 | 外部结构 |
| 释义 | 〔orbit〕Either of two bony cavities in the skull containing an eye and its external structures; an eye socket.眼眶：颅骨中围绕眼球及眼外部结构的两个多骨的腔室中的一个；眼窗〔bodywork〕The metal or plastic external structure of a motor vehicle.车身：机动车的金属和塑料的外部结构〔extraembryonic〕Of or being a structure that is outside the embryo:胚胎外的：位于胚胎外部结构的：〔exoskeleton〕A hard outer structure, such as the shell of an insect or a crustacean, that provides protection or support for an organism.外骨骼：为生物提供保护或支持的坚硬的外部结构，象甲壳类动物或昆虫的骨盘 |
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