倡导者

例句：

1. 1. He is an advocate for environmental protection.
   他是环保的倡导者。
2. 2. The government is advocating for a new law to address the issue.
   政府正在倡导一项新法律来解决这一问题。
3. 3. She advocates for equal rights for all genders.
   她主张所有性别享有平等权利。