上海版牛津英語6A詞組
30. water pollution 水污染
31. land pollution 陸地污染
32. keep sth. clean 保持某物干凈
33. pick up 撿起,拾起
34. put rubbish into rubbish bins 把垃圾放入垃圾箱
35. tell sb. to do sth. 告訴某人做某事
36. tell sb. not to do sth. 告訴某人不要做某事
37. leave rubbish 留下垃圾
38. want to be/become 想要成為
39. want to do sth. 想要做某事
40. promise to do sth. 承諾做某事
41. promise not to do sth. 承諾不要做某事
42. our promises 我們的承諾
43. discuss sth. with sb. 和某人討論某事