重点讲解：

1.dozens of几十；许多
Dozens of interviews with all sorts of people found few willing to praise their government or that of its competitor.
笔者与当地许多人面谈，发现几乎没人会表扬他们的政府或者政府的竞争者Uhr34_,3ovA。

2.sign up签约雇用，签约参加

Japan, Russia and Canada are refusing to sign up to further commitments under Kyoto.
日本、俄罗斯和加拿大拒绝根据《京都》签署进一步承诺协议iOBi%1g^nTp。