He showed great singleness of mind in dealing with the problem.他在解决这个问题时表现得极为专注。It is the singleness of your character which is at the foundation of my feelings respecting you.你这种专注的性格让我由衷地敬佩。This requires singleness of purpose that baulks at no sacrifice.这需要坚定目标，不畏牺牲。