with no trace of remorse
毫无悔意
To feel remorse for the rest of one’s life
抱恨终身
attrition loss of catalyst
催化剂的磨耗损失
attrition testing machine
磨耗试验机
deep feeling of grief or remorse
沉痛
in an agony of remorse
处于悔恨的痛苦中
Too late to have a deep remorse
憾悔已迟
without remorse
毫不后悔地;无情地
to be seized with remorse
后悔不已
attrition and attack
磨损与腐蚀
mixed feeling of remorse and shame
悔恨交加
To remorse when it is too late
悔恨莫及