6 sentences

1. 她的语气中透着些许无奈。

   tā de yǔ​qì zhōng tòu zhe xiē​xǔ wú​nài.

   There was a hint of helplessness in her tone.

   Source: Dong Chinese Dictionary

2. 我卖掉这辆车也是出于无奈。

   wǒ mài​diào zhè liàng chē yě shì chū​yú wú​nài.

   Selling this car was something I did out of necessity.

   Source: Dong Chinese Dictionary

3. 他听了我的话，无奈地摇了摇头。

   tā tīng le wǒ de huà, wú​nài de yáo le yáo​tóu.

   After hearing what I said, he shook his head helplessly.

   Source: Dong Chinese Dictionary

4. 他只能无奈地苦笑。

   tā zhǐ néng wú​nài de kǔ​xiào.

   He could only give a helpless, bitter smile.

   Source: Dong Chinese Dictionary

5. 面对这种尴尬的局面，他只能无奈地苦笑。

   miàn​duì zhè zhǒng gān​gà de jú​miàn, tā zhǐ néng wú​nài de kǔ​xiào.

   Facing this awkward situation, he could only give a helpless bitter smile.

   Source: Dong Chinese Dictionary

6. 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