学个词 Learn a Word-VOA英语教学 2200-drone

今天我们要学的词是 drone. Drone 无人驾驶飞机。The FAA issued commercial drone permits to four companies. 美国联邦航空局向四家公司颁发了使用商业无人机的许可证。与此同时，Amazon claimed its plans to develop a fleet of small drones to deliver packages are being hampered¹ by federal regulations and threaten to take more of its research resources abroad. 亚马逊表示，他们正在研制用于送货的无人机的计划受到联邦规定的阻碍，并威胁说要把更多的研究资源转移到国外去。好的，今天我们学习的词是 drone, drone, drone...

1 hampered   

妨碍，束缚，限制( hamper的过去式和过去分词 )

参考例句：

• The search was hampered by appalling weather conditions. 恶劣的天气妨碍了搜寻工作。
• So thought every harassed, hampered, respectable boy in St. Petersburg. 圣彼德堡镇的那些受折磨、受拘束的体面孩子们个个都是这么想的。