Four months after it began, an Ebola outbreak in Congo has grown into one of the largest ever recorded.
one of the largest ever recorded= 用以強調該事件已達到有記錄以來最大規模之一。
While some health officials report progress in containing the virus, outside experts disagree on whether the situation is improving. Concerns remain high as the outbreak continues to pose a major public health challenge.
disagree on whether= 表示專家對於特定情況或結果持有分歧意見。pose a major public health challenge= 新聞常用語,意為對公共衛生構成重大挑戰。
With four months of transmission recorded, officials and independent health experts remain divided on whether the spread of the virus is finally slowing down.
remain divided on= 表示相關人員或專家的意見持續保持分歧狀態。