| 1. | I am totally bewildered by the clues to this crossword puzzle  . | 
|  | 这个纵横字谜的提示完全把我弄糊涂了。 | 
| 2. | Before trying to solve the puzzle  , let us consider the best way to approach it. | 
|  | 要想解决这一难题,咱们先来考虑一下如何着手方为上策。 | 
| 3. | Their reason for doing it is still a puzzle to me. | 
|  | 他们为什么要做此事我仍莫名其妙。 | 
| 4. | The teacher left the children to puzzle out the answer to the problem themselves. | 
|  | 老师让学生动脑筋自行寻找问题的答案。 | 
| 5. | Have another crack at solving this puzzle  . | 
|  | 再试一试把这个难题解决了吧。 |