他过去很害羞和虚弱，但现在他变得更高更强壮了。
He used to be shy and weak, but now he has become taller and stronger.
教育成为了智慧和知识的综合体，他是一种方式，为了使这个社会变得更美好，更理智，更高尚，更公正。
Education being the synthesis of wisdom and knowledge, it's the means to strive for a more perfect, more aware more noble and more just society.
“我们用的染料和电解液都变了，”他表示，在把太阳 转变成电流上，这种电池已经变得效率更高了。
“Our dyes andelectrolytes have changed,” he said, and the cells have become more efficientat converting sunlight to electricity.
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