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词汇	bilateral symmetry
释义	bilateral symmetryn.（名词）bilateral symmetry Symmetrical arrangement, as of an organism or a body part, along a central axis, so that the body is divided into equivalent right and left halves by only one plane.两侧对称：沿一条中轴身体被一平面分为左右同等的两部分的对称排列，如有机体或身体部分
随便看	submitted submitting submontane submucosa submultiple subnet subnormal subnotebook subnuclear subocean suboceanic suborbital suborder subordinate subordinate clause subordinate conjunction suborn suborned suborning suborns Subotica suboxide subpar subpena subperiosteal

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