這些驚人的設備將使生活更輕鬆，但或許他們也有一個黑暗面。 These amazing devices will make life easier, but they may have a dark side.
Imagine ordering something online. Then, imagine that item being delivered in just a few minutes by a drone. Believe it or not, this may be probable in the near future. Drones▼ have been used by militaries since the 1970s. They refer to them as unmanned aerial vehicles▼, or UAVs. However, over the last two decades, drone technology has advanced rapidly and is increasingly available to the public. In fact, drones have already started doing work in many different industries. But is this going to be a good thing or a bad thing?
drone [ dron ] n. 無人機 an unmanned aerial vehicle (= UAV)無人航空載具 aerial [ ˈɛrɪəl ] a. 空中的
On the plus side▼, drones can do many things faster and more efficiently than people. For example, during an emergency, drones can quickly locate injured people by using special cameras. They can also distribute food, water, and medical supplies to people in hard-to-reach or dangerous places.
Drones aren’t just flying vehicles. Some travel on land and sea, and some even work on farms! Self-driving tractors▼are being developed to help out farmers, and flying drones may soon be used to spread seeds. As for the sea, an autonomous▼sailboat was recently launched to collect data about the ocean and atmosphere.
