1 sentence

1. 任务顺利完成后，他长舒了一口气，感到如释重负。

   rèn​wu shùn​lì wán​chéng hòu, tā cháng shū le yī kǒu qì, gǎn​dào rú​shì​zhòng​fù.

   After the task was successfully completed, he breathed a sigh of relief and felt as if a weight had been lifted.

   Source: Dong Chinese Dictionary