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无人机最激动人心的应用还没有被发明出来。
The most exciting applications of drones haven't even been invented yet.
真正的博物馆是将时间转化为空间的地方。
The only limit to our realization of tomorrow will be our doubts of today.
I don't regret anything I've ever done in my life, any choice that I've made. But I'm consumed with regret for the things I didn't do.
A mathematician's work is never truly finished; there is always more to explore.