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| 1. | Any of various invertebrate animals of the phylum Coelenterata, characterized by a radially symmetrical |
| 腔肠动物一种腔肠动物门的无脊椎动物，特征是有囊状腔的辐射对称体，包括水母、水螅、海葵和珊瑚 |
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| 2. | A symmetrical body rotating about an axis, one point of which is fixed, is called a top. |
| 形状对称的一物体绕其轴转动，若轴上一点固定不动，则这个物体就叫做陀螺。 |
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| 3. | One thing that makes men and women attractive to each other is having a symmetrical body. |
| 男女互相吸引的因素之一，就是拥有匀称的身材。 |
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| 4. | Either of two mackerel sharks of the genus Isurus, characterized by a large heavy body and a nearly symmetrical |
| 灰鲭鲨，尖嘴鲭鲨任一种属于鲭鲨属的鲭鲨，特点是具有硕大沉重的身体和近乎对称的尾巴 |
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| 5. | Platyhelminthes, such as a tapeworm or a planarian, characteristically having a soft, flat, bilaterally symmetrical |
| 扁虫扁形动物门的寄生或非寄生虫中的任一种，以具有柔软、扁平且两面对称的身体和无体腔为特征，如绦虫或涡虫 |
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