in the order of appearing..

①priceless：（値段をつけられないほど）きわめて貴重な
②in awe：畏敬の念を抱いて、畏れて
③disappeared：消える
④getting the hang of it：コツをつかむ
⑤diverse：多様な
⑥prairies and springs：草原や泉？
⑦give a hand：手伝う

Every year in my summer vacation, I have had a lot of ①priceless experience.
As a this year's memory of summer vacation, I still can not forget that I was watching Nagaoka fire displays ②in awe.
Big, big fireworks suddenly appeared in the dark sky and ③disappeared immidiately.
I tried to take pictures of them many times, but it was more difficult than I expected.
However gradually I ④got the hang of it, then finally I took this picture!

Hanabi

You can watch 2008 Nagaoka fireworks in YOUTUBE,that I actually watched live.
They were very ⑤diverse in shape, can entertain and inspire you for sure!

天地人花火
http://jp.youtube.com/watch?v=8pcv6xa2kdo&feature=related

フェニックス
http://jp.youtube.com/watch?v=1JA4CmojCwI&feature=related