对称: symmetry; symmetrical 短语和例子放射对称 radial symmetry; 镜面对称 mirror symmetry; 左右对称 bilateral symmetry; 大楼的两翼完全对称。 the two wings of the building are exactly symmetrical.; 对称比 cylindricizing; 对称变换
族: 名词1.(家族) clan 短语和例子宗族 tribe; clansman; 同族 the same clan; 合族 all the members of a clan; the whole clan2.(古代的一种酷刑) a death penalty in ancient china, imposed on an offender and his whole fami