Light from this shell arrives unimpeded , but stretched by the cosmic expansion into microwaves .
从壳体内发出的光是畅通无阻的，但是被宇宙大爆炸拉伸成了微波。
" It 's not like the unimpeded global flows of the dollar . To invest in china , you still have to go through intermediary channels , " he said in the commerce ministry 's newspaper .
It avoided mention of the sea at all , merely reaffirming " the importance of regional peace and stability , maritime security , unimpeded commerce , and freedom of navigation " .
上面完全避免提到南海，仅仅重申“地区和平和稳定，海上安全，畅通的贸易和通航自由的重要性”。
But what if wi-fi radio beams travelled not just a few hundred feet but stretched for several miles-and were unimpeded by trees , terrain and walls so that they could penetrate all the nooks and crannies within buildings ?
