Once ivory has left its country of origin, and if it is seized by customs officials, it can be hard to identify its source and those responsible for acquiring it.
一旦象牙离开其原产国，并且如果象牙被海关官员抓获，那么就很难识别出其产地以及找出那些对此有需求的人。
Yet little hard evidence has emerged about the seriousness of the attacks or their origin.
到目前为止，几乎没有证据表明这次攻击的严重性和它的起因。
Lacking hard evidence, scholars of the past speculated broadly about the origin of language.
由于缺少可信的证据，对于语言的起源，以往的学者往往只能推测。
Despite Mexico's skein of trade agreements, branching out into new markets is hard because of the accords' rules of origin.
尽管墨西哥加入了贸易协定，但是因为要遵守原产地规则，所以想要把规模扩大到新的市场还很困难。
Your children can learn the true origin of our foods, the hard work required to harvest them, and the importance of buying locally.
农场郊游可以让孩子们了解到，他们吃到的食物是人们辛辛苦苦播种收获而来的，购买当地的农产品有多么的重要。
Like Lingjiatan on a long, hard to say the origin of Chinese jade culture.
像凌家滩就一个龙，很难说是中华玉文化起源。
Now it is hard to image the origin scene of the seacoast.
现在已经很难想象原来海岸的面目了。
They are deeply anchored in their divine origin and it "s still hard to stand for them."
他们深深扎根于他们的神圣起源，这仍然很难支撑他们。
The first half of this thesis, which starts from the source of the "realism", tries hard to discuss the origin of the "realism" from the aspects of culture, history, education and cultural policies.
本文前半部分力图从“现实主义”的根源出发，从文化，历史，教育以及文化政策的角度论述“现实主义”的缘起。
The author explains the origin and connotation of soft power-soft power and interdependence, soft power and hard power, the source of soft power;
本文第一章从软权力与相互依存、软权力与硬权力、软权力来源这三个方面概述了软权力理论的基本内涵；
I Focus My Camera with My Soul Momo Beauty becomes hard to find, because the history in which poetry and painting belong to the same origin has been destroyed by the anxiety of modernism.
我用灵魂对焦距 默 默美之所以变得艰难了，只因诗画同源的历史，被焦虑的现代主义破坏了。
I Focus My Camera with My Soul Momo Beauty becomes hard to find, because the history in which poetry and painting belong to the same origin has been destroyed by the anxiety of modernism.
我用灵魂对焦距 默 默美之所以变得艰难了，只因诗画同源的历史，被焦虑的现代主义破坏了。
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