在过去的两年间，这座城市的许多街道都被拓宽了。
Many streets in this city have been widened in the past two years.
除了奥巴马本人以外，没人想萨拉·佩林一样在过去的两年间经历了如许变化。
With the exception of Obama himself, no one has undergone a greater transformation in the past two years than Sarah Palin.
在过去的两年间全世界人感染禽流感的总病例数为138，因病死亡的总人数是71。
The total number of cases of humans developing bird flu worldwide over the past two years is about 138, with 71 people having died from the disease.
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