| 单词 | grade separation |
| 释义 | grade separationnounseparation of the levels at which roads, railroads, paths, etc., cross one another in order to prevent conflicting rows of traffic or the possibility of accidents. Origin of grade separationAn Americanism dating back to 1930–35 Words nearby grade separationgrade point, grade point average, grader, grade school, grade-schooler, grade separation, gradient, gradienter, gradient post, gradient wind, gradin Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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