1.   After a moment the impact vanished, leaving no trace.

2.   In a sense the Earth was reborn without leaving a trace of its early history.

3.   The Marginal impact on the local economy left few traces on the record.

4.   The thief was careful not to leave any trace of his activities.

5.   The burglars left no trace.

6.   And it leaves its traces.

7.   And when a module is taken out, it leaves no trace of its presence.

8.   Artifacts are deposited in layers, over time, with the earliest inhabitants leaving their traces in the lowest layers.

9.   At a higher level of difficulty, you are often required to show even more restraint, completing your mission without leaving any trace of your presence.

10.   At such relatively low temperatures, the scientists said, bacterial organisms could conceivably survive and leave traces in the rock.