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汉语拼音：zuǒ yòu duì chēng

又称两侧对称”。生物中较高级的体型。通过主轴只能构成一个对称面，将生物体分成彼此对称的两部分。大多数动物都是左右对称。

• Flowers axillary, bisexual, zygomorphic, solitary, with a pair of bracteoles at joint of peduncle and pedicel.

  花腋生，两性的，左右对称，单生，在花序梗和花梗的关节具一对小苞片。

• The residences are all Siheyuan (quadrangles) made of black bricks and grey tiles with clear axes and bilateral symmetry.

  城内古居民宅全是清一色青砖灰瓦的四合院。轴线明确，左右对称。

• Left and right measurements were made of several features including finger length, wrist width and ear length.

  左右对称性的测量由几个方面组成，包括手指长度、手腕宽度和耳朵长度。

• Flowers zygomorphic, often reduced, cleistogamous, sometimes autogamous and intermediate.

  开花左右对称，降低的通常，，有时自花受精和中间。

• Flowers usually regular, rarely slightly zygomorphic, usually bisexual, sometimes bisexual and male flowers present in same inflorescence.

  花通常整齐，很少稍左右对称，通常两性，有时两性花和雄花存在于相同的花序中。

• Inflorescences terminal. Flowers bisexual, zygomorphic.

  花序顶生花两性，左右对称。

• Flowers bisexual, mostly actinomorphic, sometimes zygomorphic.

  花两性，多数辐射对称，有时左右对称。

• Flowers bisexual, 5-merous, actinomorphic or zygomorphic by the presence of a single lateral split of varying length.

  花两性，5瓣，由于一个侧面分裂的长度出现变化而成辐射对称的或左右对称。

• Flowers bisexual, actinomorphic, rarely zygomorphic.

  花两性，辐射对称，很少左右对称。