心脏: heart; cardiac 短语和例子心脏有杂音 have a heart murmur; 保持心脏跳动 keep the heart beating; 他心脏悸动。 his heart palpitates. 他的心脏停止了跳动 。 his heart stopped beating.; 心脏按摩 cardiac massage; 心脏导管 cardiac cathet
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