古老的木制路标立在草地上。

An old wooden ___signpost stands in the grass.

她的建议成为了我们项目进展的重要指引。

Her advice acted as a ___signpost for our project's progress.

这个博物馆的每个展区都用明显的标志清楚地标明了方向。

Every exhibition area in this museum is clearly ___signposted with visible directional signs.