几个专八阅读分析中的不懂处!

1)The vote for a Welsh assembly scraped through by less than one percent on a turout of less than 25 percent.
2) Its importance as figurehead will grow with the opening in 2003,of a new debating chamber,one of many new buildings that are transforming Cardiff from a decaying Seaport into a Baltimore-style Waterfront city.
请帮忙为我分析一下这两个句子，并翻译！谢谢！


3)Possibilities for people
4)block a bill
请帮忙翻译一下这两个短语！谢谢！