名词 trace:

1. a just detectable amount

2. an indication that something has been present

3. a suggestion of some quality

4. a drawing created by superimposing a semitransparent sheet of paper on the original image and copying on it the lines of the original image

5. either of two lines that connect a horse's harness to a wagon or other vehicle or to a whiffletree

6. a visible mark (as a footprint) left by the passage of person or animal or vehicle

动词 trace:

1. follow, discover, or ascertain the course of development of something

2. make a mark or lines on a surface

3. to go back over again

4. pursue or chase relentlessly

5. discover traces of

6. make one's course or travel along a path; travel or pass over, around, or along

7. copy by following the lines of the original drawing on a transparent sheet placed upon it; make a tracing of

8. read with difficulty

tracen.痕迹；微量；踪迹v.追踪；描绘；找出根源Trace Au痕量金trace outvt.描绘出；探寻出trace gas示踪气体tracelessadj.无痕迹的Trace oil微量油traceableadj.可追踪的；起源于Trace DNA微量DNAtrace bit跟踪位traceablyadv.可跟踪地(可追溯的；可描画的)Tracewski特拉采夫斯基

1. The room bore traces of a fierce struggle.
   这个房间留有激烈搏斗的痕迹。
2. Age has left its traces on her face.
   岁月在她脸上留下了痕迹。
3. It's exciting to discover traces of earlier civilizations.
   发现以前文明的遗迹，真令人兴奋。
4. The archaeologists found some traces 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。