He spent the better part of two hours tracing Warren's movements.

他花了两个小时的大部分时间来追踪沃伦的行踪。

She makes inquiries of her own into Thalia's death by tracing last movements, evaluating suspects and sifting alibis.

她通过追踪最后的行动、评估嫌疑人和筛选不在场证明，对塔利亚的死进行了自己的调查。