time.sleep(2 ** attempt) # 指数退避
美國國土安全部去年底發聲明指，特朗普政府執政期間，有超過250萬名非法移民離開美國，超過60.5萬人是透過執法行動而被遣返，其餘則是自行離境，並稱這是「破紀錄」的一年。
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"I wouldn't have been worried if I had one bum cheek dragging on the floor. I didn't care at that point, I just wanted to go home," she said.
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