1) They are maintaining roads.
他们在维修道路。
2) They were rolling the road.
他们在碾压道路。
3) They're making a road.
他们在铺路。?
4) They are repairing the bridge.
他们正在修桥。
5) The workmen are mending the road.
工人们正在修路。
6) They are widening the road.
他们在加宽路面。
补充资料：他们
1.代词。称自己和对方以外的若干人。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条