placard

標語牌、舉牌

Protesters waved placards demanding better working conditions.

抗議者揮著標語牌，要求改善工作條件。

布告、告示、海報

A placard on the door announced that the store had closed.

門上的告示寫著這家店已經結束營業。

說明牌、標示牌

Each painting has a small placard explaining its history.

每幅畫旁都有一塊小說明牌介紹它的歷史。

張貼告示於、貼海報於

Activists placarded the whole neighborhood overnight.

運動人士一夜之間在整個社區貼滿了海報。

以海報宣告、張貼公告正式

The new regulations were placarded outside the town hall.

新規定以公告形式張貼在市政廳外。