1. He showed pitiless disregard for his opponent's feelings.
他对对手的感受毫不顾忌。

2. The pitiless rain poured down on the homeless people.
无情的雨水倾泻在无家可归的人们身上。

3. The dictator ruled with a pitiless iron fist.
这个独裁者以冷酷无情的铁腕统治。

4. The pitiless criticism from the judge shattered her confidence.
来自法官的无情批评打击了她的自信心。