But this did not have to be the case.但这并非是必然的.As may well be the case, soil moisture was decreased.情况很可能是土壤中水分减少了.For the 2000 decennial census, that will no longer be the case.10年一次的人口普查又将在2000年举行....
英镑大幅贬值。There was a sharp fall in the value of the pound.直到现在，美元的贬值似乎都无法想象。Until now, a devaluation of the dollar seemed inconceivable.这将会造成数种欧洲货币的贬值。It will lead to devaluation of a number of European currencies....
First, why do we get light propagating at all?首先, 我们来看看光为什么可以传播?The model shows a wave propagating from left to right through air.该模型表明,波从左至右通过空气.What are the pigeons doing outside? Eating, sleeping, propagating!门外的那些鸽子在...