VOA慢速英语:研究人员发现物种入侵可喜的一面

species – n. a group of plants or animals that share similar characteristics

ecosystem – n. all the plants, animals and people living in an area considered their environment

habitat – n. the natural surroundings in which a plant or animal usually lives

benefit – n. a good or helpful result or effect

negative – adj. not having enthusiasm or positive opinions about something

detrimental – adj. causing harm or damage

impact – n. a major influence or effect