1.
memory trace

记忆痕迹(心理学)
2.
trace conditioning

痕迹制约(心理学)
3.
theory of trace extinction

痕迹消退理论 痕迹消退理论
4.
The mark pnotography is one of important part in mark inspection.

痕迹物证照相是痕迹检验的重要一环。
5.
A mark or pattern produced by imprinting.

压印产生的痕迹或图案
6.
automoBile tracks in the sand

沙地上汽车行进的痕迹。
7.
The car left a trail of exhaust fumes.

车子留下废气的痕迹
8.
removes chalk marks from blackboard.

从黑板上擦掉粉笔痕迹。
9.
He seemed to vanish into thin air.

他不留痕迹地消失了。
10.
The wall had been peppered with bullets.

墙上有密集的子弹痕迹.
11.
Red wine leaves a stain.

红葡萄酒能留下痕迹.
12.
Every vestige has been swept away.

一切痕迹都被一扫而光。
13.
a war-scarred country

留有战争痕迹的国家
14.
Sorrow has left its traces on her face.

悲伤在她脸上留下痕迹。
15.
mark with a spot or spots.

留下斑斑点点的痕迹。
16.
there as a trail of blood; a tear left its trail on her cheek.

这儿有老虎来过的痕迹。
17.
scores made by a knife on the bark of a tree

用刀在树皮上划的痕迹.
18.
not traveled over or through.

没有穿越或穿行的痕迹。