柯林斯詞典bulldozer /?b?l?d??z?/ (bulldozers) 1. N-COUNT A bulldozer is a large vehicle with a broad metal blade at the front, which is used for knocking down buildings or moving large amounts of earth. 推土機(jī) 返回 bulldozer劍橋詞典a heavy vehicle with a large blade in front , used for pushing earth and stones away and for making areas of ground flat at the same time 推土機(jī) 返回 bulldozer