4. 第一行 see改成sees5. a new environment 去掉a6. learn前面加 to (因为enable sb. to do sth.)7. 第二行 a valuable resource改成 valuable resources 因为主语是people8. in a worldwide scale改成 in the worldwide scale9. ",which"改成where 逗号也应该去掉10. as改成as well as11. adopt改成adapt...
