蝗灾之日: the day of locust非洲的蝗灾情况: african locust situation蝗虫控制;治理蝗灾: locust control这些庄稼遭到蝗灾: these crops are attacked by locusts蝗亚目: caelifera; locustodea蝗总科: locustoideaz蝗蛙属: cricket frogs蝗莺属: locustella蝗鼠: onychomys蝗呱酚: locustol蝗群: locust swarm蝗鹑雀: locust-finch蝗卵: locust egg