1.For a long time I could not understand how someone of his caliber could remain so intractably loyal to such an undeserving employer.
有很长时间我一直无法理解，为什么像他一样有能力的人长期忠诚于这般没有吸引力的职位。
2.Objective To seek a therapeutic method of intractably therapeutic cervicitis .
目的寻求一种根治难治性宫颈炎的方法。
3.This is one trivial work intractably again.
这是一项繁琐又棘手的工作。