4 sentences for 牌 (pái — signboard)

1. 门口挂着一个木牌。

   mén​kǒu guà zhe yī gè mù pái.

   A wooden sign hangs by the door.

   Source: Dong Chinese Dictionary

2. 路边竖立着一块警示牌，提醒司机减速慢行。

   lù​biān shù​lì zhe yī kuài jǐng​shì pái, tí​xǐng sī​jī jiǎn​sù màn xíng.

   A warning sign is posted by the road, reminding drivers to slow down.

   Source: Dong Chinese Dictionary

3. 拍卖会一开拍，台下的竞买者就开始踊跃举牌。

   pāi​mài​huì yī kāi​pāi, tái xià de jìng​mài​zhě jiù kāi​shǐ yǒng​yuè jǔ pái.

   As soon as the bidding began at the auction, the bidders in the audience started to raise their paddles enthusiastically.

   Source: Dong Chinese Dictionary

4. 村口矗立着一座有着三百年历史的贞节牌坊。

   cūn​kǒu chù​lì zhe yī zuò yǒu zhe sān​bǎi nián lì​shǐ de zhēn​jié pái fāng.

   At the entrance of the village stands a 300-year-old chastity archway.

   Source: Dong Chinese Dictionary