跨 - be, sit or stand astride, extend over

to step over; to step across; to stride over; to stride across; to cross

to straddle; to sit astride; to mount

straddle-beam type

overpass

across the tracks (of a bridge, etc.); over the tracks

crotch; thigh; groin

step or stride (over something)

one stride; single stride

bridge over a railroad (esp. a footbridge); overpass