noun🔗Share排障器，护轨器. The V-shaped device on the front of a locomotive (or other large vehicle) shaped so as to push objects on the tracks out of the way, to prevent major damage to the train."The old steam train had a large cowcatcher on the front to clear any debris, like fallen branches or animals, from the tracks. "老式蒸汽火车车头前方装有一个巨大的排障器，用来清除轨道上的障碍物，比如掉落的树枝或动物。vehiclemachinedeviceparttechnologyindustryChat with AIVocabulary GamePractice Reading
noun🔗Share片头广告 An advertisement at the start of a programme."The TV show started with a cowcatcher advertising a new brand of cereal. "这个电视节目以一个片头广告开始，推销一种新的麦片品牌。mediaentertainmentChat with AIVocabulary GamePractice Reading
