1 sentence for 无奈 (wú​nài — but unfortunately)

1. 我很想参加聚会，无奈工作太忙，走不开。

   wǒ hěn xiǎng cān​jiā jù​huì, wú​nài gōng​zuò tài máng, zǒu​bù​kāi.

   I'd love to attend the party, but unfortunately, I'm too busy with work to get away.

   Source: Dong Chinese Dictionary