展: Ⅰ动词1.(张开; 放开) open up; spread out; expand; unfold; unfurl 短语和例子开展群众运动 unfold a mass movement; 使旗招展 unfurl a flag; 舒展眉头 smooth one's knitted brows; 展卷 open a book2.(施展) put to good use; giv
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
