Menstruation (a period) is a major stage of puberty in girls; it's one of the many physical signs that a girl is turning into a woman.

月经（例假）的来到是女孩青春期中经历的一个重要阶段；它是女孩变为女人的众多生理变化之一。

The nervous system, however, revealed definite abnormal physical signs.

不过神经系统却表现有明显的异常体征；

The symptoms, physical signs and changes of nervous conduct speed were recorded.

观察患者症状和体征、神经传导速度变化情况。

Results The treatment group in much better in both hospitalization days and physical signs in lung.

结果治疗组肺部哮鸣音消失时间及住院日的缩短优于对照组。

Nightmare — Physical signs of disease In our daily lives, almost everyone has nightmares experience.

噩梦- - - - - - - - -身体病变的征兆在我们日常生活中，几乎每个人都有做噩梦的经历。