symmetrically          
adverb uk/sɪˈmet.rɪ.kəl.i/ us/sɪˈmet.rɪ.kəl.i/
 对称地
in a way that involves having two parts that match exactly, either when one half is like an image of the other half in a mirror, or when one part can take the place of another if it is turned 90° or 180°
  The specimen consists of about thirty-five symmetrically developed crystals. 该标本由大约 三十五个对称发育的晶体组成。 
  对应地,均衡地
in a way that involves actions or parts that are similar or balanced in some way
  His book is less traditional and is less symmetrically balanced.  他的书不循传统,也无四平八稳的结构。 
 See: symmetry
 - More examples
 - Any pair of numbers symmetrically placed about the center of the square sums to 17.
 - Two symmetrically laced red bands run down the side of this watermelon green bowl.
 - You need a strategy to apply symmetrically and based on clear rules.
 - Fighting war symmetrically means lining up our armies against their armies, tanks against tanks.