| 释义 | 
		underpass I. \ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷\ noun Etymology: under (III) + pass  : a passage beneath:  a.  : a grade separation where clearance to traffic on the upper level is obtained by depressing partially or completely (as with a tunnel) the grade of the lower level — compare overpass  b.  : the lower level of a grade separation — called also undercrossing II. transitive verb  : to provide (a crossing) with an underpass |