To put it another way, it is taken ill now but no one knows how se ri ous ly it falls ill.Fortunately, actions have been taken to sal vage the earth worldwide.

• 如今，它生病了，病得多重却没有人知道，拯救地球的行动也刻不容缓地在世界各国的努力之下，一步一步地展开之中。