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- 这房间里有搏斗过的痕迹。
The room bore evidence (ie showed signs) of a struggle.
- 这痕迹是朝著上方的。
The track tends upwards.
- 警方掘出尸体，发现有中毒的痕迹。
When the police exhumed the corpse they discovered traces of poison in it.
- 他擦去铅笔的痕迹。
He erases pencil marks.
- 湿杯子在桌面上留下一个痕迹。
The wet glass left a mark on the surface of the table.
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