n. someone who works to protect the environment from destruction or pollution
n. 环保人士
1. Many environmentalists are working to protect endangered species.
许多环保主义者正在努力保护濒危物种。
2. The environmentalist gave a speech about climate change at the conference.
这位环保主义者在会议上发表了关于气候变化的演讲。
3. She became an environmentalist because she loves nature and wants to make a difference.
她成为了一名环保主义者,因为她热爱自然并希望有所改变。