According to the World health Organisation, water-borne diseases such as diarrhoea, jaundice, typhoid, cholera, polio and gastroenteritis represent the single greatest threat to global health.

据世界卫生组织统计，水传染疾病如腹泻，黄疸，伤寒，霍乱，脊髓灰质炎和肠胃炎是对全球健康的最大威胁。

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Samoa, who are England's next opponents on 22 September, had been expected to provide the greatest threat to the floundering world champions' hopes of reaching the quarter-finals.

BBC: Samoa 15-19 Tonga

Most governments agree that the spread of all such weapons is now the greatest threat to world peace.

ECONOMIST: And the will to enforce them

The boss of one of the world's biggest banks told me over the weekend that the greatest threat to the recovery of his bank and of the British economy - in his view - is the ever rising burden of fines and compensation faced by all banks for their sloppy, reckless and rule-breaking ways in the boom years.

BBC: Are some banks too big to jail?