adj.不知疲倦的；不屈不挠的；坚持不懈的
untieing───vt.解开；解决；使自由；vi.解开；松开
untiling───不知疲倦
unwiring───不明智的
unretiring───不累的
untiringly───adv.不疲倦地；不屈不挠地
unhairing───v.除毛（unhair的现在分词）
untidying───adj.不整洁的，凌乱的；懒散的；不干净利落的，不简练的；不适宜的；v.使不整洁；使杂乱无章
untinning───分钟
untoiling───未翻
We must never be unworthy of our teachers' untiring and sincere teachings.───我们决不要辜负老师的谆谆教导。
He is a man of untiring industry.───他是位孜孜不倦努力不懈的人。
Untiring ability to work and cover rough terrain for long periods of time.───具有不知疲倦的、在崎岖的地形下长时间工作的能力。
He appeared before me , not as the untiring and incomparable socialist agitator , but as a man of learning .───在我面前出现的他，并不是一位不屈不挠的和无与伦比的社会主义鼓动家，而是一位学者。
An air of untiring, innate watchfulness and apprehension of danger seemed to be blended even with their slumbers.───四周弥漫着一种对危险永不松懈的警觉气氛；这种警觉性是本能的，即使在睡梦中他们也都保持着。
Dear Mr. Sun, Thanks for your untiring and sincere teachings, our english skills are going up in an straight line!───亲爱的孙老师：感谢您对我们的谆谆诱导，我们的英语都在直线上升。
Any traveler might have admired the minute and untiring industry which cultivated such wide areas as if they were gardens.───任何一个旅行者都会赞美说，是精耕细作和不知疲倦的勤劳把广阔天地变得像花园一样。
In a word , the trained sagacity and untiring caution of himself were all he had to rely on, amid the critical risks he unavoidably ran .───总之，在他所冒的不可避免的危险中，他除了自己那训练有素的机警和不懈的谨慎以外是一无所恃的。
Wishes all the children to make untiring efforts and diligently practices piano, obtain a bigger result in the future!───祝愿孩子们再接再厉，勤奋练琴，今后取得更大的成绩！
His general attitude is one of an untiring and immense courtesy and helpfulness.
Cardinal Basil Hume is untiring in his reminder that 12 million children under five die every year from hunger and disease.
Gonzales has been an untiring fighter for democracy.
He was untiring in his efforts to overcome racial divisions and gender inequalities.
She was an untiring worker in the Medau cause, and is much missed.
She is untiring in her efforts to help the homeless.
Added to this, he is an untiring worker.
The devotion was obvious, untiring and without resentment.
Satisfaction of customers is just our untiring pursuit!