traced

过去式：

动词过去式: traced

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：

The assiciation between our two countries can be traced back to last century.

我们两国之间的往来可以追溯到上个世纪。

The curve traced by a point on the circumference of a circle that rolls on a straight line.

圆滚线，摆线圆周上任一点在一条直线上滚动时所形成的曲线

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

We traced out our route on the map.

我们在地图上画出我们的路线。

The government has traced a policy.

政府已经草拟出一项政策。

The rain flushed away the trace left by the criminals.

大雨把犯罪分子遗留的痕迹冲刷掉了。

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。

There was barely a trace of salt in the soup.

汤里简直一点盐也没有放。

The region to be researched has been traced out.

要搜索的区域已经划了出来。