尽管贝尔维尤取得了很大的成功，但自适应信号灯并不是解决拥堵路段的万能药。
For all of Bellevue's success, adaptive signals are not a cure all for jammed roadways.
这对世界卫生组织来说是一个开端，也是采用一种新方法的另一个信号，以这种方法我们能够调动本组织的力量，与我们的会员国协同取得进展。
That's a first for WHO, and another signal of the new way in which we are able to mobilize the strengths of our Organization in coordination with our Member States to make progress.
能否将塔利班从它的精神圣地坎大哈清除掉-将是验证北约能否在阿富汗取得全面胜利的一个清晰信号。
The attempt to clear the insurgency from its spiritual heartland in Kandahar will be a clear sign of whether Nato's overall campaign in Afghanistan can succeed.
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