signpost

路标、指示牌

We missed the turn because the signpost was hidden by branches.

我们错过了路口，因为路标被树枝遮住了。

指标、征兆、指引比喻

Rising rents are a signpost of deeper problems in the city.

房租上涨是这座城市更深层问题的指标。

设置路标、以路标标示常用被动

The hiking trail is clearly signposted all the way to the summit.

这条登山步道一路到山顶都有清楚的路标指示。

预示、标明、提示

A good introduction signposts the main arguments of the essay.

好的引言会先提示这篇文章的主要论点。