形容词人迹罕至的; untread的过去式和过去分词
动词折回，退回( untread的过去式 )
1. Soon after, Zuckerberg untrod to his car and left, safe and sound.
随后，扎克伯格退回到车里，毫发无伤地离开了现场。
2. Presley laid down his pen and leaned back in his chair, with the certainty that for one moment he had touched untrod heights.
普瑞斯莱放下钢笔，靠在椅背上，自以为这一会总算攀上了人迹未到的高山绝顶。