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。
In China, the stage of high school is a turning point in most students' life, during the three years' study, the students are fighting for their future.
在中国，高中阶段是大部分学生的转折点，在三年的学习中，学生为将来奋斗。
The risk of the US slow down turning into an outright recession exists, but at this stage we would place only a small probability on such a risk.
美国经济的放缓演变成一次大萧条的可能性是存在的，但现阶段我们认为这种风险发生的可能性比较低。
Turning to see the entire picture we ourselves become the clown on the stage of this circular illusion.
转而看整个画面，我们自己开始变成了一个站在这个环形的充满幻想的舞台上的小丑。
For college students, the stage of going to college is like the turning point of their lives.
对于大学生来说，大学阶段就像他们生活的转折点。
Spring and Autumn period is the turning stage of the Chinese early country.
春秋战国时期，是中国早期国家的转型期。
Chinese contemporary art has reached a turning point, bringing this diverse generation of Chinese contemporary art to the international stage and acclaim.
中国当代艺术已经达到了一个转折点，将这一代全然不同的中国当代艺术带入到国际舞台上，并广为人们所赞誉。
Four years of college life is a turning point in my life, and in my life is the most important stage of learning and growth.
四年的大学生活是我人生的一大转折点，也是我人生中最重要的学习和成长阶段。
The market life-cycle of nuclear power on the world and in China is explored by stages. The causation of every stage turning point is probed into with emphasis on the market prospect.
笔者探索了世界与中国核电市场寿命分期，各期产生转换的动因，重点探讨了核电市场前景；
The market life-cycle of nuclear power on the world and in China is explored by stages. The causation of every stage turning point is probed into with emphasis on the market prospect.
笔者探索了世界与中国核电市场寿命分期，各期产生转换的动因，重点探讨了核电市场前景；
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