它需要一二十年才会逐渐显现出临床症状。
It takes one or two decades for the disease to develop into a stage that results in clinical symptoms.
在最近准备奥运的几个月中，现实逐渐显现出来。
That reality has been vividly illustrated in recent months as the authorities made final preparations for the Games.
道路安全方案在道路使用者身上逐渐显现出明显的效果。
The road safety programme is having a demonstrable effect on road users.
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