| 单词 | 头足类 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔siphuncle〕A tubelike structure in the body of a shelled cephalopod, such as a nautilus, extending through each chamber of the shell.体管：通过外壳中每一腔的有壳头足类（如鹦鹉螺）体内的管形结构美国传统〔tetrabranchiate〕A tetrabranchiate cephalopod.四腮目头足类美国传统 |
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