4 sentences

1. 风向变了。

   fēng​xiàng biàn le.

   The wind shifted.

   Source: OpenSubtitles

2. 风向在变。

   fēng​xiàng zài biàn.

   The wind is changing.

   Source: OpenSubtitles

3. 在做出最后决定之前，我们必须先观察一下政治风向。

   zài zuò​chū zuì​hòu jué​dìng zhī​qián, wǒ​men bì​xū xiān guān​chá yī​xià zhèng​zhì fēng​xiàng.

   We must observe the political climate before making a final decision.

   Source: Dong Chinese Dictionary

4. 气象台正在密切监测风向的变化。

   qì​xiàng​tái zhèng​zài mì​qiè jiān​cè fēng​xiàng de biàn​huà.

   The weather station is closely monitoring changes in wind direction.

   Source: Dong Chinese Dictionary