失去平衡

We suppose that there is a presently undefined subfraction of stem cell population that exists in a number of tissues beyond embryonic development. We term them postembryonic pluripotent stem cells. They differ from embryonic stem cells in that they gradually lose some differentiation potentials during development and adopt some special phenotypes once within a certain tissue. They can give rise to different kinds of stem cells; therefore, help to maintain balance during development and metabolism. They provide cells not only for the damaged tissues they reside, but also for damaged tissues different from them by migration triggered by proinflammatory cytokines or growth factors.

我们认为在胚胎发育后的多种组织中都存在一类原始干细胞群体，它们和造血干细胞、神经干细胞等多能干细胞不同，后者只能分化为特定胚层的细胞，而这类原始干细胞可分化为不同胚层的组织细胞；另一方面，它们区别于胚胎干细胞，在妊娠期间会逐渐失去部分分化潜能，并且会出现一些特殊表型或者分子标志，我们称其为胚胎后亚全能干细胞，这类干细胞具有下列特性：可分化为不同胚层的细胞，分布于身体的所有组织和器官，具有相同的表型或标志；他们在胚胎期存在于一些或全部的组织和器官中，可分化为不同类型的多能干细胞并在生长发育和新陈代谢中维持这些多能干细胞保持平衡；可以参与机体自我修复和更新，不仅能分化为所在器官的组织特异性细胞，参与器官重塑，也可以在炎症因子或者生长因子的趋化作用下，远处转移修复受损组织。

Later,Ilost my balance, tumbled, just slided down on my back, till i reached the foot of the mountain.

稍后，我失去了平衡，跌倒，用背部滑了下来，直到到达山脚。

The basic reason for low Mach-number limitation is the requirement of small fluidvelocity to avoid the equilibrium distribution functions being negative unphysically.

格子玻耳兹曼方法只能模拟低马赫数流动的根本原因在于流体流速必须很小，否则会导致平衡分布函数变负而失去物理意义。

The girl lost her balance fell off the balance beam.

小女孩失去了平衡，从平衡木上摔了下来。

Because he averts the contact or takes a soft off-balanced hook.

由于自身的灵活性，他总是通过远离防守队员，避免身体接触而投一些柔和的失去身体平衡的勾射。

So I climbed onto my desk, and then I lost my balance and fell.

因此我爬到了桌子上，结果我失去了平衡。

But the led must not be coerced, they must be able to choose their leader.

这样的人无疑有点失去他的天真无邪和无忧无虑的心境；但另一方面，他却能够在很大程度上不为别人的意见、习惯和判断所左右，并且能够不受诱惑要去把他的内心平衡建立在这样一些不可靠的基础之上。

But the led must not be coerced, they must be able to choose their leader.

这样的人无疑有点失去他的天真无邪和无忧无虑的心境；但另一方面，他却能够在很大程度上不为别人的意见、习惯和判断所左右，并且能够不受诱惑要去把他的内心平衡在这样一些不可靠的基础之上。

But the led must not be coerced, they must be able to choose their leader.

无疑，这样的人在某种程度上会失去他的天真无邪和无忧无虑的心境；但另一方面，他却能够在很大程度上不为别人的意见、习惯和判断所左右，并且能够避免那种把他的内心平衡建立在这样一些不可靠的基础之上的诱惑。

But it suddenly overbalanced and slid back into the water.

但它突然失去了平衡，又跌回水中。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。