a tireless campaigner for human rights不屈不挠的人权运动参与者...Mother Teresa's tireless efforts to help the poor.德肋撒修女孜孜不倦帮助穷人的努力My tireless little cilia make about ten sweeping strokes a second.我那不怕疲劳的小纤毛每秒钟约做10次清扫动作.He was ...