synthesis in fact

例句：

1. 1. The scientists have made a synthesis of the two theories.
   科学家们已经将两种理论结合起来。
2. 2. The process of synthesis is very important in the production of plastics.
   合成过程在塑料生产中非常重要。
3. 3.The new drug has been successfully synthesized by the researchers.
   研究人员成功地合成了这种新药。