这种药物是从原产于南美洲的金鸡纳树的树皮中提取的。到了1856年，对这种药物的需求已经超过了现有的供应。
The drug is derived from the bark of the cinchona tree, native to South America, and by 1856 demand for the drug was surpassing the available supply.
例如，在古希腊，任何砍倒橄榄树的人都会受到严厉的惩罚。
In ancient Greece, for example, anyone who cut down an olive tree was heavily punished.
令人惊讶的是，这些树的枝叶虽然挨得很近，却没有真的接触到另一棵树的枝叶。
Amazingly, the trees grow in such a way that their leaves and branches, although close together, never actually touch those of another tree.
太阳正从那些树的树梢上冉冉升起。
The sun was just rising through the leafy tops of those trees.
那棵树的每根树枝的末端都长着一丛白花。
The tree had clusters of white flowers at the end of each branch.
树叶就是树的太阳能电池，收集太阳光用来光合作用。
Leaves are the solar panels of trees, collecting sunlight for photosynthesis.
现在让我们来揭开一个关于巴尔沙树的小小谜团：为什么它们会选择在夜里开花？
And now we come to a minor balsa mystery.Why does the tree flower at night?
品格像是一棵树，名誉就像是树的影子。影子是我们所想的，其实树才是真实的东西。
Character is like a tree and reputation like its shadow. The shadow is what we think of it; the tree is the real thing.
又过了10年，写作间被挪到了花园最深处，处在紧挨着教堂燧石墙的栗树的庇护之下。
Ten years later, the "writing lodge", as she called it, was moved down to the far end of the garden, under the chestnut tree next to the flint churchyard wall.
大约中午时分，他们看到了一只非常漂亮的雪白的鸟停在一棵树的树枝上，唱着如此美妙的歌以至于他们站在那里一直听着。
About noon, they saw a beautiful snow-white bird sitting on the branch of a tree, and singing so beautifully that they stood still to listen.
整棵树就像画家手中五彩斑斓的调色板，树底部的枝桠是鲜艳的梅红色，树的中部则燃烧着明快的鹅黄色和橘红色，再往上，到了树梢，枝条又缓缓地过渡到了绛红色。
Like the messy whirl of an artist's palette, the tree blazed a bright crimson on its lower branches, burned with vivid yellows and oranges in its center, and simmered to deep Burgundy at its top.
我们做的最好的事情之一就是种更多的树。
一个人对事物有更深入的观察——这时，见树不是树，见山不是山。
"That's when one looks more deeply into things — then trees are no longer trees and mountains no longer mountains".
曾经被冰雪覆盖的树，灌木和花朵都重新长出了绿叶，一派春意盎然。
The trees and bushes and flowers which had been covered by ice grew green leaves once more, and springtime bloomed anew.
爬上一座小山后，饱览蓝色的大海、白色的建筑和绿色的橄榄树，我停下来喘口气，然后摆好姿势，拍下这幅全景图的最佳照片。
After climbing up a hill for a panoramic view of the blue sea, white buildings and green olive trees, I paused to catch my breath and then positioned myself to take the best photo of this panorama.
光线透过皂荚树柔和的绿荫照进了我的厨房。
Light filtered into my kitchen through the soft, green shade of the honey locust tree.
游客们依然怀念她的热情与包容，优雅的生活以及透过棕榈树从海上吹来的缕缕香风。
Visitors remembered it for its warmth and cosmopolitanism, gracious living and the scented wind that came off the sea through the palm trees.
即使是在十二月，我仍然可以享受绿色的棕榈树，美丽的大海，阳光明媚的沙滩和蔚蓝的天空。
Even in December, I can still enjoy the green palm trees, the beautiful sea, the sunny beach and the blue sky.
张艺谋的最新电影，《山楂树之恋》，描绘了女教师静秋和地理学者老三之间的纯洁爱情。
Zhang Yimou's latest film, "Under the Hawthorn Tree, " depicts the innocent love between a teacher, Jing Qiu, and a geologist, Lao San.
群树如表示大地的愿望似的，踮起脚来向天空窥望。
The trees, like the longings of the earth, stand atiptoe to peep at the heaven.
群树如表示大地的愿望似的，踮起脚来向天空窥望。
The trees, like the 6 longings of the earth, stand a-tiptoe to peep at the heaven.
阿德里安娜想念家乡高山上的那些树和青葱的草木。
Adriana misses the trees and greenery of her native mountains.
生活是棵长满可能的树。
大路沿线耸立着一排排高大的树。
这棵树大约有350年的历史。
为了阻挡沙漠中的风沙，人们种了很多树。
People have planted a great many trees in order to hold back wind and sand in the desert.
为了阻挡沙漠中的风沙，人们种了很多树。
People have planted a great many trees in order to hold back wind and sand in the desert.
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