学习一下。「只需飞一架无人机过去」：在多伦多大学理事会会议上提出的应对露营者的建议引发了抗议者和倡导者的隐私担忧 https://toronto.ctvnews.ca/just-fly-a-drone-over-suggestion-on-encampment-response-at-u-of-t-council-meeting-sparks-privacy-concerns-for-protesters-advocates-1.6967755?__vfz=medium%3Dsharebar
