防患于未然

We must act now to forestall disaster.───我们现在必须采取行动以防灾难。

Although G8 financial authorities broadly agree that a panic sell-off of hedge-fund positions could trigger a general crisis, they are divided over how best to forestall such a disaster.───虽然8国集团金融当局原则上同意对冲基金如果发生恐慌性抛售，但是财长们在如何避免灾难上存在分歧。

However, stronger actions are needed to forestall disaster.───不过，要防止灾难性后果还需采取更强有力的措施。