ruth,怜悯，悲哀，-less,无，没有。

1. Successfully merging two banks requires a fast and ruthless attack on costs.

成功合并两家银行需要坚决快速地着手解决费用问题。

2. The late newspaper tycoon is condemned for his ruthless treatment of employees.

已故的报业大亨因为残忍地对待员工而遭到谴责。

3. Her lawyers have been ruthless in thrashing out a divorce settlement.

她的律师在讨论离婚协议的过程中表现得非常坚决。

4. He had the ruthless streak necessary to carry him into the Cabinet.

他具有进入内阁所必需的冷酷性格。

5. He also criticised the evictions for being violent and ruthless.

他也批评这些驱逐暴力无情。