1 sentence

1. 他对他人的痛苦表现得铁石心肠，没有任何同情心。

   tā duì tā​rén de tòng​kǔ biǎo​xiàn de tiě​shí​xīn​cháng, méi​yǒu rèn​hé tóng​qíng​xīn.

   He showed a heart of stone toward others' suffering, without any sympathy at all.

   Source: Dong Chinese Dictionary