VOA慢速英语:研究称30年来世界昆虫数量一直在减少

decline – n. a change to a lower number or amount

site(s) – n. a place that is used for a particular activity

awfully – adv. very or extremely

alarming – adj. describing something that causes worry

author – n. a person who has written something

order(s) – n. a group of related plants or animals that is larger than a family

jaw dropping – adj. shocking

ecological – adj. describing the relationships between a group of living things and their environment

habitat - n. the place or type of place where a plant or animal naturally or normally lives or grows

magnificent – adj. very beautiful or impressive