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
触: Ⅰ动词1.(接触) touch; contact 短语和例子游客请勿触摸陈列品。 visitors are requested not to touch the exhibits.2.(碰; 撞) strike; hit 短语和例子触雷 strike [touch off] a mine; 船触礁了。 the ship struck a rock.3.(触动) touch
