Warning: file_put_contents(): Only 0 of 4938 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/62383.com/index.php on line 55 bilateral symmetry英英字典_bilateral symmetry剑桥英语解释_bilateral symmetry柯林斯英文解释_流逝汉英词典
1. N the property of an organism or part of an organism such that, if cut in only one plane, the two cut halves are mirror images of each other 兩側對稱→see also radial symmetry