必修4 Unit2 Working the land
1. struggle 斗争
2. expand 使变大,伸展
3. thanks to 幸亏,由于
4. rid 摆脱
5. rid…of 摆脱,除去
6. be satisfied with 对…感到满意
7. would rather宁愿
8. therefore 因此
9. export 出口
10. regret 后悔,遗憾
11. build up 逐渐增加,建立,开发
12. lead to 导致
13. focus on 集中与
14. reduce 减少
15. keep...free from/of 使…免受影响
16. comment 评论,议论