如图，两根铁棒直立于桶底水平的木桶中，在桶中加入水后，一根铁棒的$\frac{1}{3}$露出水面，另一根铁棒的$\frac{1}{4}$露出水面．两根铁棒长度之和为34cm，此时木桶中水的深度是　____ cm．

我国首都北京的主要城市职能是什么？

When I was a little girl, I lived with my grandparents in a small village(村庄).The life there was 1, and I liked it very much. I had many friends and I liked playing with them 2 . After rainy days, there was much 3 in the river(河) near our house. I often went there to get4with my friends. I had 5fun living there.
Now I live in a big city. I study in a school, but I6my life here. It’s too busy and it often makes me very7. Now the most interesting thing for me is to go to my grandparents’ home to8my vacation. Every time I can’t  9to go there. I  10  a quiet life. I hope to live in a village when I’m older.