| 单词 | groundbreaking |
| 释义 | groundbreaking /grownd"bray'king/, n. 1. the act or ceremony of breaking ground for a new construction project. adj. 2. of or pertaining to such a ceremony. 3. originating or pioneering a new endeavor, field of inquiry, or the like: Pasteur's groundbreaking work in bacteriology. [1905-10; GROUND1 + BREAK + -ING1, -ING2] |
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