road drill
noun
1A mechanical drill (now typically a pneumatic drill) used for breaking up road surfaces.
2The routine or ‘drill’ for crossing a road safely; an instance of this.
Origin
Early 20th century; earliest use found in Senate Journal.
| 单词 | road drill |
| 释义 | road drillnoun 1A mechanical drill (now typically a pneumatic drill) used for breaking up road surfaces. 2The routine or ‘drill’ for crossing a road safely; an instance of this. Origin |
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