Traces of the chemical are often found in mouse and human urine, leading scientists to wonder whether the drug is being made naturally or being delivered by something the subjects consumed.
在老鼠和人的尿中经常可发现这种化学品的痕迹，科学家们不知道这药物是自然产生的还是从实验对象使用的某种东西中带来的。
Another theory traces the theater's origin from the human interest in storytelling.
另一个追溯戏剧起源的理论认为它来自人们对叙述故事的兴趣。
Most early treatment is hemangioma, another can shorten the time of treatment for the damage to human skin, especially the damage may be less after recovery, basically leave no traces.
血管瘤最早期治疗一个是可以缩短治疗时间，另外对于人体造成的伤害尤其是对皮肤造成的伤害可能会少，痊愈后基本上不留任何痕迹。
I ask this question because I am convinced that a good building must be capable of absorbing the traces of human life and thus of taking on a specific richness.
我这么问是因为我深信：一个好房子必须有能力吸取人类生活的痕迹，并借此变得特别丰富。
This discovery shows a wide distribution of the traces indicating human activities in Qujiang area at the same period of the Maba man.
这一发现说明在马坝人生存的同一时间内，在曲江地区人类活动的踪迹分布是相当广的。
Apart from cultural remains, clear traces of human activities can be found in the Northern zone.
除了数量众多的文化遗物，北区还发现有很清楚的人类活动遗迹。
Nothing better shows our heavenly origins, our divine seed, our human intellect, those holy traces of Promethean fire.
没有什么能更好的讲述我们的起源，我们的子孙，我们人类的智力， 生命之火神圣的踪迹。
Traces of birds are no longer seen in a hundrend mountains and footprints of human beings disappear on a thousand paths.
山岭中已经看不到鸟儿的踪影，道路上，人的踪迹也早已消失。
A master packager knows how to integrate art and nature without any traces of embellishment, so that the person so packaged is no commodity but a human being, lively and lovely.
一个包装大师知道怎样不留痕迹的把包装艺术与自身品格融为一体，这样包装出来的就不是商品了，而是鲜灵活泼的人。
I am interested in traces of human mark making and details of human interaction with the landscape.
我对于人类留下的记号与痕迹非常感兴趣，以及人与景观的互动关系。
He traces it back to when human ancestors left their nests in the trees for sleeping on the ground.
他将这一变化追溯到人类祖先离开树巢开始睡在地上的时候。
Typical office furniture elements - a swivel chair and a desk, are displayed as traces of human presence, like anthropological artefacts.
一把转椅和一张桌子，这种典型的办公用品元素，被用来当作人类存在过的标志，就像人类学的手工艺品。
Engraving is, with architecture, painting, sculpture, music and dance, is the indispensable essence the fine arts, it is marked us the traces of life that we human beings can leave to the world.
雕刻与建筑、绘画、雕塑、音乐和舞蹈等殊途同归，是人类所不可或缺的艺术精华，是人类所能留给世界的生命之痕。
Another theory traces the theater "s origin from the human interest in storytelling."
另一个追溯戏剧起源的理论认为它来自人们对叙述故事的兴趣。
Human skull is usually composed by 29 bones. Besides jaw, other bone between seam by bone connected, the only allowed the traces of the movement.
人类颅骨通常由29块骨头组成。除了下颌骨，其他骨头之间由骨缝连接，只允许微量的运动。
Cotton, the natural fiber and one of the oldest fibers under human cultivation with traces over 7,000 years old recovered from archaeological sites, is going through difficult times these days.
棉花，天然纤维，是最古老的纤维之一，考古遗址证明人类种植历史超过7,000年目前正面临困难时期。
This text traces back to the intimate relationship between story and human society in history, and then proposes a kind of inherent natural links between news and story of the historical first draft;
本文从历史的维度追溯了故事与人类社会形影相随的亲密关系，进而提出作为历史初稿的新闻与故事有着一种内在的天然联系；
A master packager knows how to integrate art and nature without any traces of embellishment that the person so packaged is no commodity but human being, lively and loverly.
高明的包装者就知道把艺术和自然结合起来而不留下任何装饰痕迹，以至把人包装得不是商品，而是生动可爱的人。
A master packager knows how to integrate art and nature without any traces of embellishment that the person so packaged is no commodity but human being, lively and loverly.
高明的包装者就知道把艺术和自然结合起来而不留下任何装饰痕迹，以至把人包装得不是商品，而是生动可爱的人。
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