Scientists have devised a way to determine roughly where a person has livedusing a strand of hair， a technique that could help track the movements of criminalsuspects or unidentified murder victims.
本句的主干是scientists have devised a way。where a person has lived为determine的宾语从句；using a strand of hair为determine的状语；a technique that could help track themovements of criminal suspects or unidentifted murder victims为a way的同位语，其中that引导的是technique的定语从句。
devise的意思是“想出，设计，发明”。如：
They devised a scheme for developing the shopping mall.他们制定了建设购物中心的计划。
英语四.级考点归纳：
通常意为“决定”，其具体用法如下：
- 意为“确定，决定”：如：
Have you determined the date for the meeting？你确定会议日期T吗？
- 意为“测定，找出”。如：
You'd better determine exactly what happened.你最好查出究竟发生了什么事。
- 意为“决定，下决心”。如：
She deternlined to learn painting.她决定学习绘画。
- 意为“产生决定性的影响，决定”。如：
The exam results could determine your future.考试成绩可能会决定你的前途。
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