The swarms of desert locusts that have been ravaging farms in Ethiopia, Somalia and Kenya since the middle of last year are fanning out from East Africa to hit ever more countries - even in Asia. In Africa, the locusts arrived in Djibouti and Eritrea in January and are now spreading to Tanzania and Uganda, _________(threaten) the food security and livelihoods of millions of people. 自去年年中以来,大量沙漠蝗虫一直在破坏埃塞俄比亚、索马里和肯尼亚的农场,这些蝗虫正从东非向更多的国家 -- 甚至是亚洲 -- 发起袭击。在非洲,蝗虫于 1 月份抵达吉布提和厄立特里亚,现在蔓延到坦桑尼亚和乌干达, 威胁 着数百万人的粮食安全和生计。