In one case, a group of conservationists has already taken it upon itself to try on their own to save an endangered tree, the Florida Torreya tree, through Assisted Migration.
在一个案例中，一群自然资源保护主义者已经自己采取行动，通过协助迁徙的方式来拯救一种濒临灭绝的树——佛罗里达香榧树。
So it is playing tricks upon itself.
所以它是在欺骗自己。
It's a solution that grows upon itself.
这是一个会产生良性循环的解决方案。
The South could only turn in upon itself.
而南方就只好转而依靠自己。
It is a neurosis which feeds upon itself.
这是一种自给自足的神经官能症。
Verily the kindness that gazes upon itself in a mirror turns to stone.
的确，对镜自赏的慈悯，会变成顽石。
This militia must take upon itself to distribute such food as there was.
这一支民团必须主动承担分发现有食物的责任。
This is my taiyuan 2 swim, come back very tired eyes upon itself, and pain.
这就是我的太原二日游，回来好累，眼睛特困，身上疼痛。
The process never ends; it constantly moves back upon itself to go forward.
这过程永无止尽，总是周而复始的继续向前。
Languages are cumulative and everything you learn from day one builds upon itself.
语言是靠日积月累的，每天所学的东西都会积累起来。
Any of various fastenings formed by looping and tying a rope upon itself or to another rope or to another object.
通过绳子本身缠绕另外的绳子或另外一个物体的各种各样的系结物。
Egged on by a hysterical blogosphere and the ravings of Fox News blowhards, the Republican Party has turned upon itself.
由于受到歇斯底里的博主们及福克斯新闻大嘴的怂恿，共和党将斗争的矛头对准了自己。
This methylation is associated with gene silencing, as it causes the DNA's double helix to fold even tighter upon itself.
这个甲基化作用同基因沉默有关，因为它会导致DNA的双螺旋折叠得更加紧密。
Eventually it will collapse upon itself, forming a black hole within the Primary Universe capable of destroying all existence.
它最终会自行崩溃，并在原生宇宙内形成一个能够毁灭所有存在物的黑洞。
Egged on by a hysterical blogosphere and the ravings of Fox News blowhards, the Republican Party has turned upon itself (see article).
在一个丧失理智的博客世界与福克斯新闻吹牛者所编写的语无伦次文章的煽动下，共和党认识到命运掌握在自己的手中(已开始自食其力)。
He is large, and his weight spreads from his belly across the seat, like it was a plastic sack full of liquid, rolling in layers upon itself.
他是个大块头，重量在肚子处堆集，然后往座位处分散，肚子就像一个充满液体的塑料袋，表面正在一层一层地滚动着。
The rising flow is a wave: a slight rise amid a degrading sea of entropy; a sustainable crest always falling upon itself, forever in the state of almost -toppled.
上升流是一个起伏的波浪，在衰退的熵的海洋里轻微的上涨，是永远在即将跌落的状态下，自行奋起的连续不断的波峰。
The frame of this lounge chair folds upon itself into seven different seating positions including the arm chair shown above and the chaise lounge and bench chair below.
这个躺椅框架折叠成七种不同的座位位置，包括扶手椅和躺椅和长椅。
Solidified water flows into balance jar upon itself gravity. Keeping certain water level in the jar through an automatic controlled discharge valve, which forms a water seal.
凝结水靠本身重力流入平衡罐，通过自动控制的排水阀，保持罐内的一定水位，形成水封。
In autoimmune diseases, like arthritis or Crohns disease, t cells mistake fragments of the body's own cells for foreign invaders, leading to the body launching an attack upon itself.
在自身免疫系统疾病中，如关节炎或克隆恩氏病，T细胞误把自身细胞碎片当作外来入侵者，导致自己攻击自己。
And so, as its use as a medium becomes more widely known, this use feeds upon itself, until rapidly the commodity comes into general employment in the society as a medium of exchange.
越多人知道黄油可以被用作一种交换媒介来使用，作为交换媒介的黄油的需求量也就越大，直到整个社会都把这种商品作为交换媒介来使用为止。
And so, as its use as a medium becomes more widely known, this use feeds upon itself, until rapidly the commodity comes into general employment in the society as a medium of exchange.
越多人知道黄油可以被用作一种交换媒介来使用，作为交换媒介的黄油的需求量也就越大，直到整个社会都把这种商品作为交换媒介来使用为止。
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