语系发生

例句：

1. 1. The concept of evolution has been a subject of scientific inquiry for centuries.
   进化的概念已经是一个科学探究了好几个世纪的主题。
2. 2.The company is undergoing a major restructuring to improve its competitiveness.
   该公司正在进行重大重组，以提高其竞争力。
3. 3.The new species has evolved from a common ancestor over millions of years.
   这种新物种是从共同祖先演化而来的，经过了数百万年。