读报
登录注册网站首页
 

BEIJING 2022

Global sunblock

作者:21ST
Aa
  • -   
  •    +
On a hot day, an umbrella can help keep you away from strong sunshine. The same idea might one day help protect the Earth from global warming (全球变暖).
点击阅读全文
联系我们  |  诚聘英才  |  关于我们  |  版权声明
© i21st.cn   京ICP备2024066071号-1
 
选择报纸
选择报纸
关闭