原级：broach
broaching是什么意思
第三人称单数：broaches
broaching的近义词
过去分词：broached
过去式：broached
名词拉削; 扩孔; 推削; 铰孔
动词谈起( broach的现在分词 ); 打开并开始用; 用凿子扩大（或修光）; （在桶上）钻孔取液体
1. BMW Group is also broaching new territory in its choice of materials for this vehicle.