traced
[treis]
[ traced ]
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 |