1.
This kind confuses one for the other grafts must be fastidious about the cutting out skill, the work which the attention and the leadership are in charge of tallies ingeniously, not shows.
这种张冠李戴的嫁接要讲究裁剪技巧，注意与领导分管的工作巧妙吻合、不露痕迹。
2.
He need say no more to her this evening, and risk giving himself away.
今天晚上，他用不着跟她再说什么了，免得露出痕迹。
3.
Condensate will leave marks on the preform surface.
露水会遗留痕迹在瓶坯的表面上。
4.
He seemed to vanish into thin air.
他不留痕迹地消失了。
5.
If he did not, it was due wholly to the fact that his state was so well balanced that an absolute change for the worse did not show.
要是他看不出这一点，那完全是因为他的状况正极为平衡，还没有露出衰退的痕迹。
6.
She put the letter into her pocket and offered her visitor a smile of welcome, exhibiting no trace of discomposure.
她把信塞在口袋里，向客人发出了欢迎的微笑，没有泄露一丝心绪不宁的痕迹。
7.
Spreading paint over the dirty marks is no way to make a lasting improvement.
用油漆盖住那些痕迹不是长久之计。
8.
(of a record) having no marks of discredit or offense.
（指记录）没有不光彩或者犯罪的痕迹。
9.
murder without leaving a trace on the body.
在身体上不留痕迹地杀死。
10.
They disappeared without leaving a trace.
他们不见了，没有留下一点痕迹。
11.
War has left its mark on the country.
战争给该国留下了不可磨灭的痕迹.
12.
The mark that someone has moved the safe can not be seen.
保险箱看不出有人动过的痕迹。
13.
You see the surface rebounds and leaves no imprint when I press it lightly.
你看表面会反弹，轻轻压它不留痕迹。
14.
Departmental Interests--Non-Erasable Trace Departmental Legislation;
部门利益——部门立法抹不去的痕迹
15.
Monopolies of every kind marked your administration almost in the moment of its commencement.
你们的政府几乎在成立伊始，就暴露出种种垄断的痕迹。
16.
memory trace
记忆痕迹(心理学)
17.
trace conditioning
痕迹制约(心理学)
18.
something irregular like a bump or crack in a smooth surface.
事物平滑的表面出现裂缝或其他不规则的痕迹。