| 1. | These quotations cannot readily be traced to their sources .
这些引语很难查出出自何处。 |
| 2. | In western civilization, interest in human cognition can be traced to the ancient greece .
在西方的文明中，对人的认知的兴趣可以追溯到古代的希腊。 |
| 3. | Almost all of it could be traced to henrietta, the house keeper whom eleanor had handpicked .
其原因几乎完全可以追溯到埃莉诺亲自挑选的管家亨里埃塔身上。 |
| 4. | Police are wary of itinerants who can not be traced to a recognized camp boundary or to four walls .
警察当局对行踪漂忽的旅游者十分注意，因为难以查出这些人公认的营地或者居所。 |
| 5. | Our current awareness of an integral endocrine and metabolic response to injury may be traced to two streams of thought .
我们目前对侮辱所引起的整个内分泌和代谢反应的了解，溯源于两种思潮。 |
| 6. | The first demonstration of the formation of adventive embryos from carrot tissue explants can be traced to the work of reinert .
由胡罗卜组织外植体来的可定胚形成的最初证实可追溯到Reinert的工作。 |
| 7. | Furthermore, the energy that powers the continuing evolution of the universe apparently can all be traced to nuclear reaction and transformation .
而且，赋予宇宙不断演化的动力的能量明显地可追逆到核反应和核蜕变。 |
| 8. | From long ago, by an established tradition that can be traced to the hypothesis of immanuel kant and the marquis de laplace, astronomers have assumed that stars develop out of a scattered, diffuse medium of gas and dust .
很长时间以来，天文学家承袭了可以追溯至康德和拉普拉斯假说所建立的概念，认为恒星由散布在空中的弥漫气尘物质演变而来。 |
| 9. | Most computer crimes can be traced to hackers
计算机犯罪大多为黑客所为。 |
| 10. | It can be traced to 16th century germany
圣诞树可追溯到16世纪的德国。 |
