21 too dirty;to drink 22 unless it rains 23 in the end 24 enjoy ourselves 25 don't work harder ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 如不明白请及时追问,如果满意请采纳! 手机提问...
你好 21. too dirty to drink 22. it isn't rainy 23. in the end 24. enjoy ourselves 25. don't work harder ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 祝你学习进步,更上一层楼! 不明白请及时追问,满意敬请采纳,O(∩_∩)O谢谢~~