Now people I talk to are often surprised when they hear that these are the only four components that make a conservation drone, but they are even more surprised when I tell them how affordable these components are.
当人们听到一架环境保护无人机 仅仅只有这四部分组成的时候， 他们总是很惊奇， 但当我告诉他们这些部件的价格 并不是那么贵的时候，他们显得更加惊讶。