2 sentences for 痛楚 (tòng​chǔ)

1. 伤口传来阵阵痛楚，让他难以入睡。

   shāng​kǒu chuán​lái zhèn​zhèn tòng​chǔ, ràng tā nán​yǐ rù​shuì.

   Waves of pain from the wound made it hard for him to sleep.

   Source: Dong Chinese Dictionary

2. 这段感情的破裂给他带来了极大的痛楚，久久不能释怀。

   zhè duàn gǎn​qíng de pò​liè gěi tā dài​lái le jí​dà de tòng​chǔ, jiǔ​jiǔ bù néng shì​huái.

   The end of this relationship caused him great anguish, and he hasn't been able to move on for a long time.

   Source: Dong Chinese Dictionary