n.树立标志
动词signpost的现在分词.
The signpost points in a westerly direction. 路标指向西。
They reached a crossroads marked by a signpost. 他们到了一个设有路标的十字路口。
The signpost indicates the right way to go. 路标标示正确的前进路线。
The signpost pointed straight ahead. 路标直指前方。
The one major signpost is change. 一个主要的路标就是改变。
