2 sentences

1. 谷仓的屋顶上安装了一个铁制的风向标。

   gǔ​cāng de wū​dǐng shàng ān​zhuāng le yī gè tiě​zhì de fēng​xiàng​biāo.

   A metal weather vane was installed on the barn roof.

   Source: Dong Chinese Dictionary

2. 股市的波动通常被视为国民经济发展的风向标。

   gǔ​shì de bō​dòng tōng​cháng bèi shì​wéi guó​mín jīng​jì fā​zhǎn de fēng​xiàng​biāo.

   Stock market fluctuations are often seen as a bellwether of national economic development.

   Source: Dong Chinese Dictionary