It's a rolling contract that could continue, but Mr. Chan has no idea where that will lead.

这是一份滚动合同，可以延期，但是Chan先生不知道结果到底会怎样。

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Although country representatives at WHA had urged Chan to move slowly before declaring phase 6, Ryan insists that no prolonged lobbying campaign occurred.

虽然世卫组织的各国代表都敦促Chan在升级到六级时要循序渐进，但是Ryan坚持并没有发生旷日持久的游说活动。

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We have no idea when and how the pandemic will occur, or whether this high case fatality rate of 61 per cent in humans will be maintained, "said Chan."

我们不知道大流行将于何时发生、如何发生，也不知道人类病例61%的高死亡率是否会持续下去。

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Undurraga is particularly concerned about the NARMS findings because it means the consumption of meat is adding to what the director-general of the World Health Organization, Dr. Margaret Chan, last year called a "post-antibiotic era" in which antibiotics will no longer work to fight disease because too many bacteria have developed resistance to it.

CNN: What government tests found in your meat