7 sentences

1. 他在岸上挥手向我们示意。

   tā zài àn​shàng huī​shǒu xiàng wǒ​men shì​yì.

   He waved to us from the shore.

   Source: Dong Chinese Dictionary

2. 他在挥手道别。

   tā zài huī​shǒu dào​bié.

   He's waving goodbye.

   Source: OpenSubtitles

3. 你在挥手吗？

   nǐ zài huī​shǒu ma?

   Are you waving?

   Source: OpenSubtitles

4. 他远远地站在校门口，向我挥手。

   tā yuǎn​yuǎn de zhàn zài xiào​mén​kǒu, xiàng wǒ huī​shǒu.

   He stood at the school gate in the distance, waving to me.

   Source: Dong Chinese Dictionary

5. 他站在高高的台上向大家挥手。

   tā zhàn zài gāo​gāo de tái shàng xiàng dà​jiā huī​shǒu.

   He stood on the high platform waving to everyone.

   Source: Dong Chinese Dictionary

6. 放学了，孩子们排好队，挥手跟老师说再见。

   fàng​xué le, hái​zi men pái hǎo duì, huī​shǒu gēn lǎo​shī shuō zài​jiàn.

   School was over, and the children lined up to wave goodbye to their teacher.

   Source: Dong Chinese Dictionary

7. 老师在校门口向我们挥手，示意大家过去。

   lǎo​shī zài xiào​mén​kǒu xiàng wǒ​men huī​shǒu, shì​yì dà​jiā guò​qù.

   The teacher waved to us at the school gate, signaling for everyone to come over.

   Source: Dong Chinese Dictionary