开拓kāituò 1.开辟;扩展{open up}: ～边疆{develop frontier regions}|～处女地{tread on uncharted territory}◇这一年短篇小说的创作道路～得更广阔了。{The year saw short-story writing embark on a broader avenue.} 2.采掘矿物前进行的修建巷道等工序的总称。{tunnel a mining pit to facilitate the tapping of mineral deposits}