There are seldom any sidewalks, and when there are, they are not often wide enough to pass a man on without caroming on him. 马克·吐温.傻子出国记.
Often leaves and grass and sidewalks are so cold that the water vapor in the atmosphere condenses on them, and we say a heavy dew has formed. 伯莎M.克拉克.科学通论.
One of the improvements in the manufacture and use of modern _cements_ and artificial stones consists in their application to the making of streets and sidewalks. 威廉·亨利·杜利特.世纪发明.