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信息发布者：
lost
safer
drives
inventor
to study
truth
To help people live healthier lives.
By letting students have more time to exercise.
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Between 18.5 and 24.
Bad sleep can make people get weight.
 I often eat vegetables and play sports.
      At the beginning of this term, my class had a field trip to a wetland. During the visit, we saw different kinds of rare birds like the red-crowned cranes. In the afternoon, we watched a video about wildlife in danger. The video showed that some wild animals were facing serious problems but luckily we made great efforts to protect them.    
     It is an exciting and meaningful experience. We not only enjoyed ourselves but also learned a lot. This experience made us aware of the importance of a balanced ecosystem. We should try our best to protect the wetlands and create a safe environment for the wildlife living there.
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