1 sentence

1. 我本想帮他，结果却事与愿违，反而让事情更糟了。

   wǒ běn xiǎng bāng tā, jié​guǒ què shì​yǔ​yuàn​wéi, fǎn'ér ràng shì​qing gèng zāo le.

   I intended to help him, but it backfired and I ended up making matters worse.

   Source: Dong Chinese Dictionary