与此同时，国会中务实的，硕果仅存的共和党中间力量——如参议员理查德·卢格——的呼声却被茶党的过激分子喧嚣所淹没。
Meanwhile, in Congress, the few remaining pragmatic Republican centrists, like Senator Richard Lugar, are being hunted down by tea-party activists.
由此引发的受挫感主要出现在过激的极端分子之中。
The resulting frustration is confined (mainly) to the extremist fringes of politics.
通过激活休眠期的胚胎分子路径，干细胞被诱导参与新毛囊的形成。
By activating dormant embryonic molecular pathways stem cells were coaxed into forming new hair follicles.
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