基本解释[土木建筑工程]窗嵌玻璃铅条[机械工程]细铅条英汉例句权威例句During Mr Rumsfeld's appearances in the Senate, the Democrats fretted that current policy might lead to the worst of all possible worlds.ECONOMIST: Defence policyfretted lead更多例句专业释义土木建筑工程窗嵌玻璃铅条机械工程细铅条