如不采取预防措施，将导致大灾难。

If preventive measures are not taken the project could lead to a catastrophe.

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如不采取集体和大胆的行动，一个现实的风险就是主要经济体将不进反退。

And again-without collective, bold, action, there is a real risk that the major economies slip back instead of moving forward.

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如不采取紧急行动，到2030年时，每年的死亡数字可上升到800万以上。

Unless urgent action is taken, the annual death toll could rise to more than eight million by 2030.

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