Nelson Piquet, three times world champion, was grievously injured.三度获得世界冠军的尼尔森·皮奎特受了重伤。He slewed the telescope three degrees south.他把望远镜向南转了三度。It was a cold night. About two or three degrees at a guess.那是一个寒冷的夜晚，气温估计只有两三度。He was thrice mayor of New York.他三度担任纽约市长。