🔟 桶排序 (Bucket Sort)
Additional reporting by Jack Gray
,这一点在搜狗输入法下载中也有详细论述
"We don't know where they go, but they disappear for about 10 days, and then they'll come back again. And without the CCTV, we never knew that."
The answer was the US Navy, which was hungry for new pilots after World War Two. It was not building rockets but at least it involved flying.