2 sentences

1. 这首曲子的旋律优美缠绵。

   zhè shǒu qǔ​zi de xuán​lǜ yōu​měi chán​mián.

   The melody of this song is beautiful and lingering.

   Source: Dong Chinese Dictionary

2. 他缠绵病榻多年，身体十分虚弱。

   tā chán​mián bìng​tà duō nián, shēn​tǐ shí​fēn xū​ruò.

   He has been bedridden for many years and is very weak.

   Source: Dong Chinese Dictionary