trace
[treis]
n.痕迹, 微量, 踪迹
v.追踪, 描绘, 找出根源
例句与用法：
The cause of the fire was traced to a faulty fuse-box.
起火的原因已查出是因保险丝盒中有短路。
He traced his signature laboriously.
他吃力地签上自己的名字。
He traces his descent back to an old norman family.
他追踪自己的世系上溯至一个古老的诺曼家族。
Her fear of water can be traced back to a childhood accident.
她很怕水，起因可归於儿时的一次事故。
Did the police find any trace of the murderer?
警方找到凶手的行踪了吗？
I can't trace that letter you sent me.
我找不到你寄给我的那封信。
The family can trace its history to the 17th century.
这个家族的历史可以追溯到十七世纪。
词形变化：
形容词: traceable | 副词: traceably | 名词: traceability | 动词过去式: traced | 动词过去分词: traced | 动词现在分词: tracing | 动词第三人称单数: traces |
详细释义：
n.
1. 痕迹; 遗迹[C][U]
The archaeologists found some traces of an ancient civilization in that area.
考古学家们在那个地区发现了一些古代文明的遗迹。
2. 丝毫, 微量[C]
There was barely a trace of salt in the soup.
汤里简直一点盐也没有放。
He always spoke with a trace of sarcasm.
他说话总带着一丝讽刺。
3. (记录仪器上存留的)图形, 记录[C]
vt.
1. 跟踪; 追踪[(+to)]
The police traced the criminal.
警察追踪罪犯。
2. 查出, 探出
The post office tried to trace the lost letter.
邮局设法查出那封丢失的信。
3. 追溯; 查考[(+back/to)]
The book traces the development of philosophy.
该书追溯了哲学的发展过程。
4. 描绘; 勾出……的轮廓[(+out)]
5. (费力, 细心地)写(字)
6. 描摹, 摹写; 复写
The kids are learning to trace the letter.
孩子们学描字母。
vi.
1. 沿着路走
2. 上溯[(+to)]
His fear of snakes traces back to an experience in his childhood.
他对蛇的惧怕溯自他孩童时的一次经历。
n.
挽绳, 缰绳
kick over the traces
摆脱控制; 不顺从
短语词组：
trace back
1. 追溯
Her family can trace its history back to the 15th century.
她的家史可追溯到15世纪。