然而，既然所有的人类似乎都只需要一条活化的染色体，何以只有一条X染色体的女性会变成不孕、侏儒、蹼状颈(webbed neck)的透纳氏症候群(Turner Syndrome)患者？
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Unique facial features, such as widely-spaced eyes, triangular face, low-set ears, and short-webbed neck.
面部特征奇特，例如双目距离远，三角脸，低位耳以及短蹼颈。
The appearance of this disorder can include hypertelorism (widely-set eyes), down-slanting eyes, webbed neck, and other conditions, including congenital heart disease in half of those affected.
这种病症的表象可能包括器官距离过远（双目远离）、向下斜视、蹼状颈、以及其它状况，包括半数患有先天性心脏病。
Any of various large aquatic birds of the family Anatidae chiefly of the genera Cygnus and Olor, having webbed feet, a long slender neck, and usually white plumage.
天鹅：鸭科的各种大型水禽，主要是天鹅和哑天鹅属，有蹼足、长而细的脖子和通常为白色的羽毛。
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