trace

痕迹、踪迹

The thieves vanished without a trace after the robbery.

抢案之后，那些小偷消失得无影无踪。

微量、少许

Tests found traces of lead in the drinking water.

检验在饮用水中发现微量的铅。

迹象、痕迹

There was a trace of doubt in her voice.

她的语气里有一丝怀疑。

轨迹线、描线专业

The trace on the monitor suddenly flattened out.

萤幕上的轨迹线突然变成一条直线。

追溯、溯源

He traced his family history back four hundred years.

他把家族史追溯到四百年前。

追踪、查出

Police traced the stolen car to a warehouse.

警方追查到那辆失窃的车在一间仓库里。

描摹、临摹

She traced the map onto thin paper with a pencil.

她用铅笔把地图描在薄纸上。

勾勒、描出

He traced a circle in the dust with his finger.

他用手指在灰尘上画了一个圆。

沿著…前行、循迹

We traced the stream up into the mountains.

我们沿著溪流一路走进山里。