She started to learn the piano at the age of 4, and she sang her first song on the stage when she was 9 years old.

她4岁开始学习钢琴，9岁时就在舞台上唱了第一首歌。

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Cynoglussus abbreviatus of 1~4 years old are on the growing stage with the fastest growing speed at the age of 1~2, it being gradually getting slow after 2 years old .

结果表明：1-4龄的短吻舌鳎处于生长期，在生长速度上，1-2龄生长速度最快，以后生长速度逐渐减慢；

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Only tumours, which admittedly represent the final stage of degeneration in old age, are always immediately referred for surgery.

只有公认的呈现老年恶化晚期肿瘤才总要立刻进行外科手术。

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The irony is that it appears much easier to put in a new stage, seats and lighting than change the age-old culture of infighting and intrigue.

BBC: Ballet wars at the Bolshoi