2 sentences for 回馈 (huí​kuì — give back)

1. 我们有责任回馈社会。

   wǒ​men yǒu zé​rèn huí​kuì shè​huì.

   We have a responsibility to give back to society.

   Source: OpenSubtitles

2. 他想以优异的成绩来回馈父母的养育之恩。

   tā xiǎng yǐ yōu​yì de chéng​jì lái huí​kuì fù​mǔ de yǎng​yù zhī ēn.

   He wants to repay his parents for raising him by achieving excellent results.

   Source: Dong Chinese Dictionary