1 does'n study
2 drunk
3 Does have to
4 more than
5 what time
6 pay the most
7 covers of
8 Most undergroundwater
9 is enough
10 can easily use
12 now
13 for example
14 at least
15 have to
16 洗澡
17 世界上的大部分份水
18 人类
19 views
20 until
21 wholely
22 because
23 owner
24 remember
25none