缺少叶酸则可能会使肿瘤占上风，使之发生未加抑制的突变。
The lack of folate might enable cancer to get the upper hand, allowing mutations to occur unchecked.
为了看清楚未加抑制的浪费杀伤力能有多大，我们将观察一下最近的经济嘣溃。
To see how devastating unchecked waste can be we'll examine the recent economic collapse.
林伯曼说：“如果我们现在不能有效减少温室气体的排放，那么到本世纪中叶，未加抑制的全球温室效应会对我国造成的经济损失会是非常巨大的。”
The economic costs to this country of unchecked global warming will be grievous by mid-century unless we act now to mandate significant reductions in greenhouse gas emissions.
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