他从1990年到1994年在西太区作为根除脊髓灰质炎行动领导人,使该区域报告的脊灰病例从5,963例减少到700例。
As head of polio eradication initiatives in the Western Pacific from 1990 to 1994, he oversaw a reduction in reported polio cases from 5963 to 700 in the Region.
虽然其巨大的火山灰柱并非空前绝后,但其位置尤其引人注目,因为它漂浮到了许多人口稠密区。
Although the large ash plume was not unparalleled in its abundance, its location was particularly noticeable because it drifted across such well populated areas.
新加坡双溪布洛湿地保护区中,一只灰缝夜莺站在树枝上。
An ashy tailorbird on a tree branch at the Sungei Buloh wetland reserve, a wildlife sanctuary in Singapore.
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