footpost

例句：

1. 1.The soldier placed a footpost in the ground to mark his position.
   士兵在地上放置了一个脚桩来标记他的位置。
2. 2. The postman delivered mail at the footpost of the post office.
   邮差在邮局的脚桩处投递邮件。
3. 3.The construction workers used wooden footposts to support the roof.
   建筑工人使用木制脚桩支撑屋顶。