All surgical instruments must be sterilised before use.
所有的外手械在使用前,必须消。
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Every week the US Department of Agriculture (USDA) and Panamanian government drop sterilised screwworms, a parasitic flesh-eating fly larva that feeds on livestock, out of a plane on the Panama-Colombia border in order to stop the creatures from breeding.
每周,美国农业部和巴拿马政府都会在巴拿马和哥伦比亚边境用飞机投放绝育的螺旋虫(种苍蝇幼虫,寄生且吃牲畜的活体组织),阻止这种生物的繁殖。
Some scientists have suggested releasing genetically modified, sterilised versions of the insects that would get rid of the species altogether; others warn that doing so could have unforeseen consequences by eradicating both a pollinator and a food source for other animals.
些科学家建议放出转基因的、绝育的蚊子,从而彻底消灭这物种。另些科学家警告说,这样做能会产生不预见的后果,因为其他动物的这传粉者和食物来源都会消失。