慢速英语:新视频显示亚马逊部落与外界没有联系

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drone – n. kind of aircraft that does not carry a pilot or passengers and can be controlled remotely

jungle – n. an area of land, usually in tropical countries, where trees and plants grow close together

isolated – adj. alone and not having help or support from other people

indigenous – adj. having always lived or existed in a place

bow – n. piece of curved wood with string fixed to both ends, used for shooting arrows

arrow – n. long, thin stick with a sharp point at one end which is fired from a bow

reflect – v. to think about in a serious and careful way