文章列表

• 1.听一分钟英文：Oceans-海洋
• I really worry about our oceans. Not many people understand how important the oceans are. Every day we hear stories about the rainforests and the ice ...
• 2.听一分钟英文：Obesity-超重
• Obesity is a problem that is getting bigger and bigger around the world. It really hits rich countries. When people have money, they buy a lot of the ...