Earth Day

例句：

1. 1. On Earth Day, we organized a community clean-up event to raise awareness about environmental protection.
   在地球日，我们组织了一个社区清洁活动，以提高人们对环境保护的意识。
2. 2. Many people believe that Earth Day is a good opportunity to reflect on the importance of preserving our planet.
   许多人认为地球日是一个很好的机会，来反思保护我们的星球的重要性。
3. 3. The celebration of Earth Day has become a global movement aimed at promoting sustainable development and reducing carbon emissions.
   地球日的庆祝已经成为一个全球运动，旨在促进可持续发展和减少碳排放。