1、a severe water shortage严重缺水
2、wealthy ( 富裕的)
3、beneficial (有益的)
4、undesirable (不好的,不受欢迎的)
5、nevertheless (然而,不过)
6、fundamental / significant/vital /crucial (重要的)
7、relevant (有关的)....is highly relevant to.......
8、extraordinary/amazing (惊人的,非凡的)
9、provided/providing (that) (如果.....)
10、on condition that
11、promote /strengthen (提高,加强)
12、cope with (解决)
13、motivate (激励)
14、pros and cons(好处和坏处)