沿着

down; along

平坦的

complanate; plane; even; flat; planar; tabular

道路

way; road; path; route; approach

前进

advance; move; move forward; proceed; press on; forge ahead; march; progress; push forward; gain ground; make headway; go forward; go ahead; make progress; make one's way; forward; progressive; onward; onwards; ahead; ascent; advancing; progression; forward movement; onward march