voice sth——青夏教育精英家教网——

6. voice sth　

5. follow the schedule for sth　　　　

4. harm/damage the environment　

3. open the floor

2. protect/ preserve the environment　

1. environmental protection　　　

40. be responsible for

(M5) Unit 2　 The environment

39. regardless of

38. be based on/upon

37. share sth with sb

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