1 sentence for 悠悠 (yōu​yōu — pensive)

1. 每当听到这首老歌，他心中总会产生悠悠的思念。

   měi​dāng tīng​dào zhè shǒu lǎo gē, tā xīn​zhōng zǒng​huì chǎn​shēng yōu​yōu de sī​niàn.

   Whenever he hears this old song, a lingering sense of longing arises in his heart.

   Source: Dong Chinese Dictionary