initiator of polymerization

例句：

1. 1. The initiator of the project was a brilliant idea.
   这个项目的发起人是一个绝妙的想法。
2. 2. The initiator of the revolution was a young man named John.
   革命的发起人是一个叫约翰的年轻人。
3. 3.The initiator of the new policy is expected to be a senior official.
   新政策的发起人预计将是一位高级官员。