3 sentences

1. 他觉得这份工作做得很顺心。

   tā jué​de zhè fèn gōng​zuò zuò de hěn shùn​xīn.

   He finds this job very satisfying.

   Source: Dong Chinese Dictionary

2. 他性格暴躁，稍不顺心就动手殴人。

   tā xìng​gé bào​zào, shāo bù shùn​xīn jiù dòng​shǒu ōu rén.

   He has a violent temper and resorts to hitting people whenever things don't go his way.

   Source: Dong Chinese Dictionary

3. 看到孩子们都成家立业了，他心里很顺心。

   kàn​dào hái​zi men dōu chéng​jiā​lì​yè le, tā xīn​li hěn shùn​xīn.

   Seeing his children all settled down, he felt very content.

   Source: Dong Chinese Dictionary