生长激素英文缩写

　　Fish growth hormone plays an important role in the development of fish.

　　鱼类生长激素对鱼的生长发育有重要的作用。

　　The big growth area of recent years has been in health clubs.

　　健身俱乐部是近年来发展迅速的领域。

　　Growth has not been uniform across the country.

　　全国各地的发展程度不一。