VOA慢速英语:Diseases Jump Borders to Infect African Livestock

transboundary -- n. crossing borders or the line separating countries

pest – n. an animal or insect that causes problems for people especially by damaging crops or animals

eradication – n. the complete removal of something; the elimination or destruction of something harmful

contagious – adj. able to be passed from one person or animal to another by touching

strategy – n. a careful plan or method for achieving a particular goal usually over a long period of time

undertake – v. to begin or attempt (something)

surveillance – n. the act of carefully watching or observing someone or something

detect – v. to discover or notice the presence of (something that is hidden or hard to see)

collaboration – n. the act of working with another person or group in order to achieve or do something

livelihood – n. a way of earning money in order to live

vulnerable – adj. open to attack, harm or damage; (usually + to)

famine – n. a situation in which many people do not have enough food to eat

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