signpost

/ˈsaɪnˌpoʊst/

a post bearing a sign that gives directions or shows the way

Chinese meaning: 路标；指示牌

The signpost at the junction clearly indicated the direction to the airport.

交叉路口的路标清楚地指示了前往机场的方向。

Tourists often rely on signposts to navigate unfamiliar cities.

游客常常依靠路标在陌生的城市中导航。