traced

第三人称单数：

动词第三人称单数: traces

更多词形：

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 |

单词例句：

A curve traced by a point on or connected with a circle as the circle rolls along a fixed straight line.

旋转线，次摆线圆在固定直线上滚动时，圆上一点或与圆相连的一点的弧形轨迹

An investigation or inquiry organized to trace missing goods or persons.

追踪调查为查找失踪物品或人员而组织的调查或询问

She traced her irrational fear of birds back to something which had happened to her as a child.

她从她童年的经历中找到了她对鸟类莫名恐惧感的原由。

The police traced the criminal.

警察追踪罪犯。

Her annoyance can be clearly traced in her letter.

在她的信中可以很清楚地看出她的不快。

There was barely a trace of salt in the soup.

汤里简直一点盐也没有放。

At last the noise was traced to a fault in the pipes.

最终发现嗓音是由管子里的一处缺陷所致。

Americans trace their origins from many different countries that there is a wide range of "acceptable" social customs in America.

美国人原是来自许多不同的国家，所以美国有各种不同的“可接受的”社会习俗。

The archaeologist find some trace 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。