3 sentences

1. 路标在车灯照射下会反光。

   lù​biāo zài chē​dēng zhào​shè xià huì fǎn​guāng.

   Road signs reflect light when hit by car headlights.

   Source: Dong Chinese Dictionary

2. 路标指向市中心。

   lù​biāo zhǐ​xiàng shì​zhōng​xīn.

   The road sign points to the city center.

   Source: Dong Chinese Dictionary

3. 请顺着路标上的箭头方向行驶。

   qǐng shùn​zhe lù​biāo shàng de jiàn​tóu fāng​xiàng xíng​shǐ.

   Please follow the direction of the arrow on the road sign.

   Source: Dong Chinese Dictionary